Merge Telegram support

For #94.

.gitignore

@@ -14,3 +14,4 @@ server.pem
 server.crt
 instructions-debian.txt
 cl.md
+./telegram/

README.md

@@ -17,11 +17,12 @@ jfa-go is a user management app for [Jellyfin](https://github.com/jellyfin/jelly
 * ⌛ User expiry: Specify a validity period, and new users accounts will be disabled/deleted after it. The period can be manually extended too.
 * 🔗 Ombi Integration: Automatically creates Ombi accounts for new users using their email address and login details, and your own defined set of permissions.
 * Account management: Apply settings to your users individually or en masse, and delete users, optionally sending them an email notification with a reason.
+* Telegram Integration: Verify users via telegram, and send Password Resets, Announcements, etc. through it.
 * 📨 Email storage: Add your existing users email addresses through the UI, and jfa-go will ask new users for them on account creation.
     * Email addresses can optionally be used instead of usernames
-* 🔑 Password resets: When users forget their passwords and request a change in Jellyfin, jfa-go reads the PIN from the created file and sends it straight to the user via email.
+* 🔑 Password resets: When users forget their passwords and request a change in Jellyfin, jfa-go reads the PIN from the created file and sends it straight to the user via email/telegram.
 * Notifications: Get notified when someone creates an account, or an invite expires.
-* 📣 Announcements: Bulk email your users with announcements about your server.
+* 📣 Announcements: Bulk message your users with announcements about your server.
 * Authentication via Jellyfin: Instead of using separate credentials for jfa-go and Jellyfin, jfa-go can use it as the authentication provider.
     * Enables the usage of jfa-go by multiple people
 * 🌓 Customizations

api.go

@@ -39,9 +39,9 @@ func respondBool(code int, val bool, gc *gin.Context) {
 }
 
 func (app *appContext) loadStrftime() {
-	app.datePattern = app.config.Section("email").Key("date_format").String()
+	app.datePattern = app.config.Section("messages").Key("date_format").String()
 	app.timePattern = `%H:%M`
-	if val, _ := app.config.Section("email").Key("use_24h").Bool(); !val {
+	if val, _ := app.config.Section("messages").Key("use_24h").Bool(); !val {
 		app.timePattern = `%I:%M %p`
 	}
 	return
@@ -282,7 +282,7 @@ func (app *appContext) NewUserAdmin(gc *gin.Context) {
 		}
 	}
 	app.jf.CacheExpiry = time.Now()
-	if app.config.Section("password_resets").Key("enabled").MustBool(false) {
+	if emailEnabled {
 		app.storage.emails[id] = req.Email
 		app.storage.storeEmails()
 	}
@@ -330,15 +330,44 @@ func (app *appContext) newUser(req newUserDTO, confirmed bool) (f errorFunc, suc
 		success = false
 		return
 	}
+	telegramTokenIndex := -1
+	if telegramEnabled {
+		if req.TelegramPIN == "" {
+			if app.config.Section("telegram").Key("required").MustBool(false) {
+				f = func(gc *gin.Context) {
+					app.debug.Printf("%s: New user failed: Telegram verification not completed", req.Code)
+					respond(401, "errorTelegramVerification", gc)
+				}
+				success = false
+				return
+			}
+		} else {
+			for i, v := range app.telegram.verifiedTokens {
+				if v.Token == req.TelegramPIN {
+					telegramTokenIndex = i
+					break
+				}
+			}
+			if telegramTokenIndex == -1 {
+				f = func(gc *gin.Context) {
+					app.debug.Printf("%s: New user failed: Telegram PIN was invalid", req.Code)
+					respond(401, "errorInvalidPIN", gc)
+				}
+				success = false
+				return
+			}
+		}
+	}
 	if emailEnabled && app.config.Section("email_confirmation").Key("enabled").MustBool(false) && !confirmed {
 		claims := jwt.MapClaims{
-			"valid":    true,
+			"valid":       true,
-			"invite":   req.Code,
+			"invite":      req.Code,
-			"email":    req.Email,
+			"email":       req.Email,
-			"username": req.Username,
+			"username":    req.Username,
-			"password": req.Password,
+			"password":    req.Password,
-			"exp":      strconv.FormatInt(time.Now().Add(time.Hour*12).Unix(), 10),
+			"telegramPIN": req.TelegramPIN,
-			"type":     "confirmation",
+			"exp":         strconv.FormatInt(time.Now().Add(time.Hour*12).Unix(), 10),
+			"type":        "confirmation",
 		}
 		tk := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
 		key, err := tk.SignedString([]byte(os.Getenv("JFA_SECRET")))
@@ -450,15 +479,40 @@ func (app *appContext) newUser(req newUserDTO, confirmed bool) (f errorFunc, suc
 			app.err.Printf("Failed to store user duration: %v", err)
 		}
 	}
-	if emailEnabled && app.config.Section("welcome_email").Key("enabled").MustBool(false) && req.Email != "" {
+
-		app.debug.Printf("%s: Sending welcome email to %s", req.Username, req.Email)
+	if telegramEnabled && telegramTokenIndex != -1 {
+		tgToken := app.telegram.verifiedTokens[telegramTokenIndex]
+		tgUser := TelegramUser{
+			ChatID:   tgToken.ChatID,
+			Username: tgToken.Username,
+			Contact:  req.TelegramContact,
+		}
+		if lang, ok := app.telegram.languages[tgToken.ChatID]; ok {
+			tgUser.Lang = lang
+		}
+		if app.storage.telegram == nil {
+			app.storage.telegram = map[string]TelegramUser{}
+		}
+		app.storage.telegram[user.ID] = tgUser
+		err := app.storage.storeTelegramUsers()
+		if err != nil {
+			app.err.Printf("Failed to store Telegram users: %v", err)
+		} else {
+			app.telegram.verifiedTokens[len(app.telegram.verifiedTokens)-1], app.telegram.verifiedTokens[telegramTokenIndex] = app.telegram.verifiedTokens[telegramTokenIndex], app.telegram.verifiedTokens[len(app.telegram.verifiedTokens)-1]
+			app.telegram.verifiedTokens = app.telegram.verifiedTokens[:len(app.telegram.verifiedTokens)-1]
+		}
+	}
+
+	if (emailEnabled && app.config.Section("welcome_email").Key("enabled").MustBool(false) && req.Email != "") || telegramTokenIndex != -1 {
+		name := app.getAddressOrName(user.ID)
+		app.debug.Printf("%s: Sending welcome message to %s", req.Username, name)
 		msg, err := app.email.constructWelcome(req.Username, expiry, app, false)
 		if err != nil {
-			app.err.Printf("%s: Failed to construct welcome email: %v", req.Username, err)
+			app.err.Printf("%s: Failed to construct welcome message: %v", req.Username, err)
-		} else if err := app.email.send(msg, req.Email); err != nil {
+		} else if err := app.sendByID(msg, user.ID); err != nil {
-			app.err.Printf("%s: Failed to send welcome email: %v", req.Username, err)
+			app.err.Printf("%s: Failed to send welcome message: %v", req.Username, err)
 		} else {
-			app.info.Printf("%s: Sent welcome email to \"%s\"", req.Username, req.Email)
+			app.info.Printf("%s: Sent welcome message to \"%s\"", req.Username, name)
 		}
 	}
 	app.jf.CacheExpiry = time.Now()
@@ -525,7 +579,20 @@ func (app *appContext) EnableDisableUsers(gc *gin.Context) {
 		"GetUser":   map[string]string{},
 		"SetPolicy": map[string]string{},
 	}
-	var addresses []string
+	sendMail := messagesEnabled
+	var msg *Message
+	var err error
+	if sendMail {
+		if req.Enabled {
+			msg, err = app.email.constructEnabled(req.Reason, app, false)
+		} else {
+			msg, err = app.email.constructDisabled(req.Reason, app, false)
+		}
+		if err != nil {
+			app.err.Printf("Failed to construct account enabled/disabled emails: %v", err)
+			sendMail = false
+		}
+	}
 	for _, userID := range req.Users {
 		user, status, err := app.jf.UserByID(userID, false)
 		if status != 200 || err != nil {
@@ -540,31 +607,13 @@ func (app *appContext) EnableDisableUsers(gc *gin.Context) {
 			app.err.Printf("Failed to set policy for user \"%s\" (%d): %v", userID, status, err)
 			continue
 		}
-		if emailEnabled && req.Notify {
+		if sendMail && req.Notify {
-			addr, ok := app.storage.emails[userID]
+			if err := app.sendByID(msg, userID); err != nil {
-			if addr != nil && ok {
+				app.err.Printf("Failed to send account enabled/disabled email: %v", err)
-				addresses = append(addresses, addr.(string))
+				continue
 			}
 		}
 	}
-	if len(addresses) != 0 {
-		go func(reason string, addresses []string) {
-			var msg *Email
-			var err error
-			if req.Enabled {
-				msg, err = app.email.constructEnabled(reason, app, false)
-			} else {
-				msg, err = app.email.constructDisabled(reason, app, false)
-			}
-			if err != nil {
-				app.err.Printf("Failed to construct account enabled/disabled emails: %v", err)
-			} else if err := app.email.send(msg, addresses...); err != nil {
-				app.err.Printf("Failed to send account enabled/disabled emails: %v", err)
-			} else {
-				app.info.Println("Sent account enabled/disabled emails")
-			}
-		}(req.Reason, addresses)
-	}
 	app.jf.CacheExpiry = time.Now()
 	if len(errors["GetUser"]) != 0 || len(errors["SetPolicy"]) != 0 {
 		gc.JSON(500, errors)
@@ -584,10 +633,19 @@ func (app *appContext) EnableDisableUsers(gc *gin.Context) {
 // @tags Users
 func (app *appContext) DeleteUsers(gc *gin.Context) {
 	var req deleteUserDTO
-	var addresses []string
 	gc.BindJSON(&req)
 	errors := map[string]string{}
 	ombiEnabled := app.config.Section("ombi").Key("enabled").MustBool(false)
+	sendMail := messagesEnabled
+	var msg *Message
+	var err error
+	if sendMail {
+		msg, err = app.email.constructDeleted(req.Reason, app, false)
+		if err != nil {
+			app.err.Printf("Failed to construct account deletion emails: %v", err)
+			sendMail = false
+		}
+	}
 	for _, userID := range req.Users {
 		if ombiEnabled {
 			ombiUser, code, err := app.getOmbiUser(userID)
@@ -610,25 +668,12 @@ func (app *appContext) DeleteUsers(gc *gin.Context) {
 				errors[userID] += msg
 			}
 		}
-		if emailEnabled && req.Notify {
+		if sendMail && req.Notify {
-			addr, ok := app.storage.emails[userID]
+			if err := app.sendByID(msg, userID); err != nil {
-			if addr != nil && ok {
+				app.err.Printf("Failed to send account deletion email: %v", err)
-				addresses = append(addresses, addr.(string))
 			}
 		}
 	}
-	if len(addresses) != 0 {
-		go func(reason string, addresses []string) {
-			msg, err := app.email.constructDeleted(reason, app, false)
-			if err != nil {
-				app.err.Printf("Failed to construct account deletion emails: %v", err)
-			} else if err := app.email.send(msg, addresses...); err != nil {
-				app.err.Printf("Failed to send account deletion emails: %v", err)
-			} else {
-				app.info.Println("Sent account deletion emails")
-			}
-		}(req.Reason, addresses)
-	}
 	app.jf.CacheExpiry = time.Now()
 	if len(errors) == len(req.Users) {
 		respondBool(500, false, gc)
@@ -685,29 +730,21 @@ func (app *appContext) ExtendExpiry(gc *gin.Context) {
 func (app *appContext) Announce(gc *gin.Context) {
 	var req announcementDTO
 	gc.BindJSON(&req)
-	if !emailEnabled {
+	if !messagesEnabled {
 		respondBool(400, false, gc)
 		return
 	}
-	addresses := []string{}
-	for _, userID := range req.Users {
-		addr, ok := app.storage.emails[userID]
-		if !ok || addr == "" {
-			continue
-		}
-		addresses = append(addresses, addr.(string))
-	}
 	msg, err := app.email.constructTemplate(req.Subject, req.Message, app)
 	if err != nil {
-		app.err.Printf("Failed to construct announcement emails: %v", err)
+		app.err.Printf("Failed to construct announcement messages: %v", err)
 		respondBool(500, false, gc)
 		return
-	} else if err := app.email.send(msg, addresses...); err != nil {
+	} else if err := app.sendByID(msg, req.Users...); err != nil {
-		app.err.Printf("Failed to send announcement emails: %v", err)
+		app.err.Printf("Failed to send announcement messages: %v", err)
 		respondBool(500, false, gc)
 		return
 	}
-	app.info.Printf("Sent announcement email to %d users", len(addresses))
+	app.info.Println("Sent announcement messages")
 	respondBool(200, true, gc)
 }
 
@@ -1137,7 +1174,10 @@ func (app *appContext) GetUsers(gc *gin.Context) {
 		if ok {
 			user.Expiry = expiry.Unix()
 		}
-
+		if tgUser, ok := app.storage.telegram[jfUser.ID]; ok {
+			user.Telegram = tgUser.Username
+			user.NotifyThroughTelegram = tgUser.Contact
+		}
 		resp.UserList[i] = user
 		i++
 	}
@@ -1345,6 +1385,10 @@ func (app *appContext) GetConfig(gc *gin.Context) {
 	el := resp.Sections["email"].Settings["language"]
 	el.Options = emailOptions
 	el.Value = app.config.Section("email").Key("language").MustString("en-us")
+	telegramOptions := app.storage.lang.Email.getOptions()
+	tl := resp.Sections["telegram"].Settings["language"]
+	tl.Options = telegramOptions
+	tl.Value = app.config.Section("telegram").Key("language").MustString("en-us")
 	if updater == "" {
 		delete(resp.Sections, "updates")
 		for i, v := range resp.Order {
@@ -1373,6 +1417,7 @@ func (app *appContext) GetConfig(gc *gin.Context) {
 	resp.Sections["ui"].Settings["language-admin"] = al
 	resp.Sections["email"].Settings["language"] = el
 	resp.Sections["password_resets"].Settings["language"] = pl
+	resp.Sections["telegram"].Settings["language"] = tl
 
 	gc.JSON(200, resp)
 }
@@ -1397,6 +1442,9 @@ func (app *appContext) ModifyConfig(gc *gin.Context) {
 				tempConfig.NewSection(section)
 			}
 			for setting, value := range settings.(map[string]interface{}) {
+				if section == "email" && setting == "method" && value == "disabled" {
+					value = ""
+				}
 				if value.(string) != app.config.Section(section).Key(setting).MustString("") {
 					tempConfig.Section(section).Key(setting).SetValue(value.(string))
 				}
@@ -1438,6 +1486,7 @@ func (app *appContext) ModifyConfig(gc *gin.Context) {
 // @Param lang query string false "Language for email titles."
 // @Success 200 {object} emailListDTO
 // @Router /config/emails [get]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) GetCustomEmails(gc *gin.Context) {
 	lang := gc.Query("lang")
@@ -1466,6 +1515,7 @@ func (app *appContext) GetCustomEmails(gc *gin.Context) {
 // @Failure 500 {object} boolResponse
 // @Param id path string true "ID of email"
 // @Router /config/emails/{id} [post]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) SetCustomEmail(gc *gin.Context) {
 	var req customEmail
@@ -1525,6 +1575,7 @@ func (app *appContext) SetCustomEmail(gc *gin.Context) {
 // @Param enable/disable path string true "enable/disable"
 // @Param id path string true "ID of email"
 // @Router /config/emails/{id}/state/{enable/disable} [post]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) SetCustomEmailState(gc *gin.Context) {
 	id := gc.Param("id")
@@ -1574,13 +1625,14 @@ func (app *appContext) SetCustomEmailState(gc *gin.Context) {
 // @Failure 500 {object} boolResponse
 // @Param id path string true "ID of email"
 // @Router /config/emails/{id} [get]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) GetCustomEmailTemplate(gc *gin.Context) {
 	lang := app.storage.lang.chosenEmailLang
 	id := gc.Param("id")
 	var content string
 	var err error
-	var msg *Email
+	var msg *Message
 	var variables []string
 	var conditionals []string
 	var values map[string]interface{}
@@ -1762,6 +1814,7 @@ func (app *appContext) GetCustomEmailTemplate(gc *gin.Context) {
 // @Produce json
 // @Success 200 {object} checkUpdateDTO
 // @Router /config/update [get]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) CheckUpdate(gc *gin.Context) {
 	if !app.newUpdate {
@@ -1776,6 +1829,7 @@ func (app *appContext) CheckUpdate(gc *gin.Context) {
 // @Success 400 {object} stringResponse
 // @Success 500 {object} boolResponse
 // @Router /config/update [post]
+// @Security Bearer
 // @tags Configuration
 func (app *appContext) ApplyUpdate(gc *gin.Context) {
 	if !app.update.CanUpdate {
@@ -1801,6 +1855,7 @@ func (app *appContext) ApplyUpdate(gc *gin.Context) {
 // @Success 200 {object} boolResponse
 // @Failure 500 {object} stringResponse
 // @Router /logout [post]
+// @Security Bearer
 // @tags Other
 func (app *appContext) Logout(gc *gin.Context) {
 	cookie, err := gc.Cookie("refresh")
@@ -1874,8 +1929,162 @@ func (app *appContext) ServeLang(gc *gin.Context) {
 	respondBool(400, false, gc)
 }
 
+// @Summary Returns a new Telegram verification PIN, and the bot username.
+// @Produce json
+// @Success 200 {object} telegramPinDTO
+// @Router /telegram/pin [get]
+// @Security Bearer
+// @tags Other
+func (app *appContext) TelegramGetPin(gc *gin.Context) {
+	gc.JSON(200, telegramPinDTO{
+		Token:    app.telegram.NewAuthToken(),
+		Username: app.telegram.username,
+	})
+}
+
+// @Summary Link a Jellyfin & Telegram user together via a verification PIN.
+// @Produce json
+// @Param telegramSetDTO body telegramSetDTO true "Token and user's Jellyfin ID."
+// @Success 200 {object} boolResponse
+// @Failure 500 {object} boolResponse
+// @Failure 400 {object} boolResponse
+// @Router /users/telegram [post]
+// @Security Bearer
+// @tags Other
+func (app *appContext) TelegramAddUser(gc *gin.Context) {
+	var req telegramSetDTO
+	gc.BindJSON(&req)
+	if req.Token == "" || req.ID == "" {
+		respondBool(400, false, gc)
+		return
+	}
+	tokenIndex := -1
+	for i, v := range app.telegram.verifiedTokens {
+		if v.Token == req.Token {
+			tokenIndex = i
+			break
+		}
+	}
+	if tokenIndex == -1 {
+		respondBool(500, false, gc)
+		return
+	}
+	tgToken := app.telegram.verifiedTokens[tokenIndex]
+	tgUser := TelegramUser{
+		ChatID:   tgToken.ChatID,
+		Username: tgToken.Username,
+		Contact:  true,
+	}
+	if lang, ok := app.telegram.languages[tgToken.ChatID]; ok {
+		tgUser.Lang = lang
+	}
+	if app.storage.telegram == nil {
+		app.storage.telegram = map[string]TelegramUser{}
+	}
+	app.storage.telegram[req.ID] = tgUser
+	err := app.storage.storeTelegramUsers()
+	if err != nil {
+		app.err.Printf("Failed to store Telegram users: %v", err)
+	} else {
+		app.telegram.verifiedTokens[len(app.telegram.verifiedTokens)-1], app.telegram.verifiedTokens[tokenIndex] = app.telegram.verifiedTokens[tokenIndex], app.telegram.verifiedTokens[len(app.telegram.verifiedTokens)-1]
+		app.telegram.verifiedTokens = app.telegram.verifiedTokens[:len(app.telegram.verifiedTokens)-1]
+	}
+	respondBool(200, true, gc)
+}
+
+// @Summary Sets whether to notify a user through telegram or not.
+// @Produce json
+// @Param telegramNotifyDTO body telegramNotifyDTO true "User's Jellyfin ID and whether or not to notify then through Telegram."
+// @Success 200 {object} boolResponse
+// @Success 400 {object} boolResponse
+// @Success 500 {object} boolResponse
+// @Router /users/telegram/notify [post]
+// @Security Bearer
+// @tags Other
+func (app *appContext) TelegramSetNotify(gc *gin.Context) {
+	var req telegramNotifyDTO
+	gc.BindJSON(&req)
+	if req.ID == "" {
+		respondBool(400, false, gc)
+		return
+	}
+	if tgUser, ok := app.storage.telegram[req.ID]; ok {
+		tgUser.Contact = req.Enabled
+		app.storage.telegram[req.ID] = tgUser
+		if err := app.storage.storeTelegramUsers(); err != nil {
+			respondBool(500, false, gc)
+			app.err.Printf("Telegram: Failed to store users: %v", err)
+			return
+		}
+		respondBool(200, true, gc)
+		msg := ""
+		if !req.Enabled {
+			msg = "not"
+		}
+		app.debug.Printf("Telegram: User \"%s\" will %s be notified through Telegram.", tgUser.Username, msg)
+		return
+	}
+	app.err.Printf("Telegram: User \"%s\" does not have a telegram account registered.", req.ID)
+	respondBool(400, false, gc)
+}
+
+// @Summary Returns true/false on whether or not a telegram PIN was verified. Requires bearer auth.
+// @Produce json
+// @Success 200 {object} boolResponse
+// @Param pin path string true "PIN code to check"
+// @Router /telegram/verified/{pin} [get]
+// @Security Bearer
+// @tags Other
+func (app *appContext) TelegramVerified(gc *gin.Context) {
+	pin := gc.Param("pin")
+	tokenIndex := -1
+	for i, v := range app.telegram.verifiedTokens {
+		if v.Token == pin {
+			tokenIndex = i
+			break
+		}
+	}
+	// if tokenIndex != -1 {
+	// 	length := len(app.telegram.verifiedTokens)
+	// 	app.telegram.verifiedTokens[length-1], app.telegram.verifiedTokens[tokenIndex] = app.telegram.verifiedTokens[tokenIndex], app.telegram.verifiedTokens[length-1]
+	// 	app.telegram.verifiedTokens = app.telegram.verifiedTokens[:length-1]
+	// }
+	respondBool(200, tokenIndex != -1, gc)
+}
+
+// @Summary Returns true/false on whether or not a telegram PIN was verified. Requires invite code.
+// @Produce json
+// @Success 200 {object} boolResponse
+// @Success 401 {object} boolResponse
+// @Param pin path string true "PIN code to check"
+// @Param invCode path string true "invite Code"
+// @Router /invite/{invCode}/telegram/verified/{pin} [get]
+// @tags Other
+func (app *appContext) TelegramVerifiedInvite(gc *gin.Context) {
+	code := gc.Param("invCode")
+	if _, ok := app.storage.invites[code]; !ok {
+		respondBool(401, false, gc)
+		return
+	}
+	pin := gc.Param("pin")
+	tokenIndex := -1
+	for i, v := range app.telegram.verifiedTokens {
+		if v.Token == pin {
+			tokenIndex = i
+			break
+		}
+	}
+	// if tokenIndex != -1 {
+	// 	length := len(app.telegram.verifiedTokens)
+	// 	app.telegram.verifiedTokens[length-1], app.telegram.verifiedTokens[tokenIndex] = app.telegram.verifiedTokens[tokenIndex], app.telegram.verifiedTokens[length-1]
+	// 	app.telegram.verifiedTokens = app.telegram.verifiedTokens[:length-1]
+	// }
+	respondBool(200, tokenIndex != -1, gc)
+}
+
 // @Summary Restarts the program. No response means success.
 // @Router /restart [post]
+// @Security Bearer
 // @tags Other
 func (app *appContext) restart(gc *gin.Context) {
 	app.info.Println("Restarting...")

config.go

@@ -12,6 +12,8 @@ import (
 )
 
 var emailEnabled = false
+var messagesEnabled = false
+var telegramEnabled = false
 
 func (app *appContext) GetPath(sect, key string) (fs.FS, string) {
 	val := app.config.Section(sect).Key(key).MustString("")
@@ -40,7 +42,7 @@ func (app *appContext) loadConfig() error {
 			key.SetValue(key.MustString(filepath.Join(app.dataPath, (key.Name() + ".json"))))
 		}
 	}
-	for _, key := range []string{"user_configuration", "user_displayprefs", "user_profiles", "ombi_template", "invites", "emails", "user_template", "custom_emails", "users"} {
+	for _, key := range []string{"user_configuration", "user_displayprefs", "user_profiles", "ombi_template", "invites", "emails", "user_template", "custom_emails", "users", "telegram_users"} {
 		app.config.Section("files").Key(key).SetValue(app.config.Section("files").Key(key).MustString(filepath.Join(app.dataPath, (key + ".json"))))
 	}
 	app.URLBase = strings.TrimSuffix(app.config.Section("ui").Key("url_base").MustString(""), "/")
@@ -83,12 +85,19 @@ func (app *appContext) loadConfig() error {
 	app.config.Section("jellyfin").Key("version").SetValue(version)
 	app.config.Section("jellyfin").Key("device").SetValue("jfa-go")
 	app.config.Section("jellyfin").Key("device_id").SetValue(fmt.Sprintf("jfa-go-%s-%s", version, commit))
-
+	messagesEnabled = app.config.Section("messages").Key("enabled").MustBool(false)
-	if app.config.Section("email").Key("method").MustString("") == "" {
+	telegramEnabled = app.config.Section("telegram").Key("enabled").MustBool(false)
+	if !messagesEnabled {
+		emailEnabled = false
+		telegramEnabled = false
+	} else if app.config.Section("email").Key("method").MustString("") == "" {
 		emailEnabled = false
 	} else {
 		emailEnabled = true
 	}
+	if !emailEnabled && !telegramEnabled {
+		messagesEnabled = false
+	}
 
 	app.MustSetValue("updates", "enabled", "true")
 	releaseChannel := app.config.Section("updates").Key("channel").String()
@@ -128,8 +137,34 @@ func (app *appContext) loadConfig() error {
 	app.storage.lang.chosenAdminLang = app.config.Section("ui").Key("language-admin").MustString("en-us")
 	app.storage.lang.chosenEmailLang = app.config.Section("email").Key("language").MustString("en-us")
 	app.storage.lang.chosenPWRLang = app.config.Section("password_resets").Key("language").MustString("en-us")
+	app.storage.lang.chosenTelegramLang = app.config.Section("telegram").Key("language").MustString("en-us")
 
 	app.email = NewEmailer(app)
 
 	return nil
 }
+
+func (app *appContext) migrateEmailConfig() {
+	tempConfig, _ := ini.Load(app.configPath)
+	fmt.Println(warning("Part of your email configuration will be migrated to the new \"messages\" section.\nA backup will be made."))
+	err := tempConfig.SaveTo(app.configPath + "_" + commit + ".bak")
+	if err != nil {
+		app.err.Fatalf("Failed to backup config: %v", err)
+		return
+	}
+	for _, setting := range []string{"use_24h", "date_format", "message"} {
+		if val := app.config.Section("email").Key(setting).Value(); val != "" {
+			tempConfig.Section("email").Key(setting).SetValue("")
+			tempConfig.Section("messages").Key(setting).SetValue(val)
+		}
+	}
+	if app.config.Section("messages").Key("enabled").MustBool(false) || app.config.Section("telegram").Key("enabled").MustBool(false) {
+		tempConfig.Section("messages").Key("enabled").SetValue("true")
+	}
+	err = tempConfig.SaveTo(app.configPath)
+	if err != nil {
+		app.err.Fatalf("Failed to save config: %v", err)
+		return
+	}
+	app.loadConfig()
+}

config/config-base.json

@@ -345,33 +345,20 @@
                 }
             }
         },
-        "email": {
+        "messages": {
             "order": [],
             "meta": {
-                "name": "Email",
+                "name": "Messages/Notifications",
-                "description": "General email settings."
+                "description": "General settings for emails/messages."
             },
             "settings": {
-                "language": {
+                "enabled": {
-                    "name": "Email Language",
+                    "name": "Enabled",
-                    "required": false,
+                    "required": true,
-                    "requires_restart": false,
+                    "requires_restart": true,
-                    "depends_true": "method",
-                    "type": "select",
-                    "options": [
-                        ["en-us", "English (US)"]
-                    ],
-                    "value": "en-us",
-                    "description": "Default email language. Submit a PR on github if you'd like to translate."
-                },
-                "no_username": {
-                    "name": "Use email addresses as username",
-                    "required": false,
-                    "requires_restart": false,
-                    "depends_true": "method",
                     "type": "bool",
-                    "value": false,
+                    "value": true,
-                    "description": "Use email address from invite form as username on Jellyfin."
+                    "description": "Enable the sending of emails/messages such as password resets, announcements, etc."
                 },
                 "use_24h": {
                     "name": "Use 24h time",
@@ -399,6 +386,37 @@
                     "type": "text",
                     "value": "Need help? contact me.",
                     "description": "Message displayed at bottom of emails."
+                }
+            }
+        },
+        "email": {
+            "order": [],
+            "meta": {
+                "name": "Email",
+                "description": "General email settings.",
+                "depends_true": "messages|enabled"
+            },
+            "settings": {
+                "language": {
+                    "name": "Email Language",
+                    "required": false,
+                    "requires_restart": false,
+                    "depends_true": "method",
+                    "type": "select",
+                    "options": [
+                        ["en-us", "English (US)"]
+                    ],
+                    "value": "en-us",
+                    "description": "Default email language. Submit a PR on github if you'd like to translate."
+                },
+                "no_username": {
+                    "name": "Use email addresses as username",
+                    "required": false,
+                    "requires_restart": false,
+                    "depends_true": "method",
+                    "type": "bool",
+                    "value": false,
+                    "description": "Use email address from invite form as username on Jellyfin."
                 },
                 "method": {
                     "name": "Email method",
@@ -443,12 +461,143 @@
                 }
             }
         },
+        "mailgun": {
+            "order": [],
+            "meta": {
+                "name": "Mailgun (Email)",
+                "description": "Mailgun API connection settings",
+                "depends_true": "email|method"
+            },
+            "settings": {
+                "api_url": {
+                    "name": "API URL",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "text",
+                    "value": "https://api.mailgun.net..."
+                },
+                "api_key": {
+                    "name": "API Key",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "text",
+                    "value": "your api key"
+                }
+            }
+        },
+        "smtp": {
+            "order": [],
+            "meta": {
+                "name": "SMTP (Email)",
+                "description": "SMTP Server connection settings.",
+                "depends_true": "email|method"
+            },
+            "settings": {
+                "username": {
+                    "name": "Username",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "text",
+                    "value": "",
+                    "description": "Username for SMTP. Leave blank to user send from address as username."
+                },
+                "encryption": {
+                    "name": "Encryption Method",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "select",
+                    "options": [
+                        ["ssl_tls", "SSL/TLS"],
+                        ["starttls", "STARTTLS"]
+                    ],
+                    "value": "starttls",
+                    "description": "Your email provider should provide different ports for each encryption method. Generally 465 for ssl_tls, 587 for starttls."
+                },
+                "server": {
+                    "name": "Server address",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "text",
+                    "value": "smtp.jellyf.in",
+                    "description": "SMTP Server address."
+                },
+                "port": {
+                    "name": "Port",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "number",
+                    "value": 465
+                },
+                "password": {
+                    "name": "Password",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "password",
+                    "value": "smtp password"
+                },
+                "ssl_cert": {
+                    "name": "Path to custom SSL certificate",
+                    "required": false,
+                    "requires_restart": false,
+                    "advanced":  true,
+                    "type": "text",
+                    "value": "",
+                    "description": "Use if your SMTP server's SSL Certificate is not trusted by the system."
+                }
+            }
+        },
+        "telegram": {
+            "order": [],
+            "meta": {
+                "name": "Telegram",
+                "description": "Settings for Telegram signup/notifications"
+            },
+            "settings": {
+                "enabled": {
+                    "name": "Enabled",
+                    "required": false,
+                    "requires_restart": true,
+                    "type": "bool",
+                    "value": false,
+                    "description": "Enable signup verification through Telegram and the sending of notifications through it.\nSee the jfa-go wiki for setting up a bot."
+                },
+                "required": {
+                    "name": "Require on sign-up",
+                    "required": false,
+                    "required_restart": true,
+                    "type": "bool",
+                    "value": false,
+                    "description": "Require telegram connection on sign-up."
+                },
+                "token": {
+                    "name": "API Token",
+                    "required": false,
+                    "requires_restart": true,
+                    "depends_true": "enabled",
+                    "type": "text",
+                    "value": "",
+                    "description": "Telegram Bot API Token."
+                },
+                "language": {
+                    "name": "Language",
+                    "required": false,
+                    "requires_restart": false,
+                    "depends_true": "enabled",
+                    "type": "select",
+                    "options": [
+                        ["en-us", "English (US)"]
+                    ],
+                    "value": "en-us",
+                    "description": "Default telegram message language. Visit weblate if you'd like to translate."
+                }
+            }
+        },
         "password_resets": {
             "order": [],
             "meta": {
                 "name": "Password Resets",
                 "description": "Settings for the password reset handler.",
-                "depends_true": "email|method"
+                "depends_true": "messages|enabled"
             },
             "settings": {
                 "enabled": {
@@ -580,7 +729,7 @@
             "meta": {
                 "name": "Notifications",
                 "description": "Notification related settings.",
-                "depends_true": "email|method"
+                "depends_true": "messages|enabled"
             },
             "settings": {
                 "enabled": {
@@ -633,91 +782,6 @@
                 }
             }
         },
-        "mailgun": {
-            "order": [],
-            "meta": {
-                "name": "Mailgun (Email)",
-                "description": "Mailgun API connection settings",
-                "depends_true": "email|method"
-            },
-            "settings": {
-                "api_url": {
-                    "name": "API URL",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "text",
-                    "value": "https://api.mailgun.net..."
-                },
-                "api_key": {
-                    "name": "API Key",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "text",
-                    "value": "your api key"
-                }
-            }
-        },
-        "smtp": {
-            "order": [],
-            "meta": {
-                "name": "SMTP (Email)",
-                "description": "SMTP Server connection settings.",
-                "depends_true": "email|method"
-            },
-            "settings": {
-                "username": {
-                    "name": "Username",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "text",
-                    "value": "",
-                    "description": "Username for SMTP. Leave blank to user send from address as username."
-                },
-                "encryption": {
-                    "name": "Encryption Method",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "select",
-                    "options": [
-                        ["ssl_tls", "SSL/TLS"],
-                        ["starttls", "STARTTLS"]
-                    ],
-                    "value": "starttls",
-                    "description": "Your email provider should provide different ports for each encryption method. Generally 465 for ssl_tls, 587 for starttls."
-                },
-                "server": {
-                    "name": "Server address",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "text",
-                    "value": "smtp.jellyf.in",
-                    "description": "SMTP Server address."
-                },
-                "port": {
-                    "name": "Port",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "number",
-                    "value": 465
-                },
-                "password": {
-                    "name": "Password",
-                    "required": false,
-                    "requires_restart": false,
-                    "type": "password",
-                    "value": "smtp password"
-                },
-                "ssl_cert": {
-                    "name": "Path to custom SSL certificate",
-                    "required": false,
-                    "requires_restart": false,
-                    "advanced":  true,
-                    "type": "text",
-                    "value": "",
-                    "description": "Use if your SMTP server's SSL Certificate is not trusted by the system."
-                }
-            }
-        },
         "ombi": {
             "order": [],
             "meta": {
@@ -756,9 +820,9 @@
         "welcome_email": {
             "order": [],
             "meta": {
-                "name": "Welcome Emails",
+                "name": "Welcome Message",
-                "description": "Optionally send a welcome email to new users with the Jellyfin URL and their username.",
+                "description": "Optionally send a welcome message to new users with the Jellyfin URL and their username.",
-                "depends_true": "email|method"
+                "depends_true": "messages|enabled"
             },
             "settings": {
                 "enabled": {
@@ -865,14 +929,14 @@
                     "requires_restart": false,
                     "type": "bool",
                     "value": true,
-                    "depends_true": "email|method",
+                    "depends_true": "messages|enabled",
                     "description": "Send an email when a user's account expires."
                 },
                 "subject": {
                     "name": "Email subject",
                     "required": false,
                     "requires_restart": false,
-                    "depends_true": "email|method",
+                    "depends_true": "messages|enabled",
                     "type": "text",
                     "value": "",
                     "description": "Subject of user expiry emails."
@@ -882,7 +946,7 @@
                     "required": false,
                     "requires_restart": false,
                     "advanced": true,
-                    "depends_true": "email|method",
+                    "depends_true": "messages|enabled",
                     "type": "text",
                     "value": "",
                     "description": "Path to custom email html"
@@ -892,7 +956,7 @@
                     "required": false,
                     "requires_restart": false,
                     "advanced": true,
-                    "depends_true": "email|method",
+                    "depends_true": "messages|enabled",
                     "type": "text",
                     "value": "",
                     "description": "Path to custom email in plain text"
@@ -904,7 +968,7 @@
             "meta": {
                 "name": "Account Disabling/Enabling",
                 "description": "Subject/email files for account disabling/enabling emails.",
-                "depends_true": "email|method"
+                "depends_true": "messages|enabled"
             },
             "settings": {
                 "subject_disabled": {
@@ -966,7 +1030,7 @@
             "meta": {
                 "name": "Account Deletion",
                 "description": "Subject/email files for account deletion emails.",
-                "depends_true": "email|method"
+                "depends_true": "messages|enabled"
             },
             "settings": {
                 "subject": {
@@ -1068,6 +1132,14 @@
                     "type": "text",
                     "value": "",
                     "description": "JSON file generated by program in settings, different from email_html/email_text. See wiki for more info."
+                },
+                "telegram_users": {
+                    "name": "Telegram users",
+                    "required": false,
+                    "requires_restart": false,
+                    "type": "text",
+                    "value": "",
+                    "description": "Stores telegram user IDs and language preferences."
                 }
             }
         }

css/base.css

@@ -39,6 +39,11 @@
     }
 }
 
+.chip.btn:hover:not([disabled]):not(.textarea),
+.chip.btn:focus:not([disabled]):not(.textarea) {
+    filter: brightness(var(--button-filter-brightness,95%));
+}
+
 .banner {
     margin: calc(-1 * var(--spacing-4,1rem));
 }
@@ -121,6 +126,10 @@ div.card:contains(section.banner.footer) {
     text-align: right;
 }
 
+.ac {
+    text-align: center;
+}
+
 .inline-block {
     display: inline-block;
 }
@@ -162,6 +171,12 @@ div.card:contains(section.banner.footer) {
     margin: 0.5rem;
 }
 
+p.sm,
+span.sm {
+    font-size: 0.75rem;
+}
+
+
 .col.sm {
     margin: .25rem;
 }
@@ -459,6 +474,11 @@ a:hover:not(.lang-link):not(.\~urge), a:active:not(.lang-link):not(.\~urge) {
     color: var(--color-urge-200);
 }
 
+.link-center {
+    display: block;
+    text-align: center;
+}
+
 .search {
     max-width: 15rem;
     min-width: 10rem;

email.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"html/template"
 	"io"
+	"io/fs"
 	"net/smtp"
 	"os"
 	"strconv"
@@ -25,13 +26,13 @@ import (
 )
 
 // implements email sending, right now via smtp or mailgun.
-type emailClient interface {
+type EmailClient interface {
-	send(fromName, fromAddr string, email *Email, address ...string) error
+	Send(fromName, fromAddr string, message *Message, address ...string) error
 }
 
-type dummyClient struct{}
+type DummyClient struct{}
 
-func (dc *dummyClient) send(fromName, fromAddr string, email *Email, address ...string) error {
+func (dc *DummyClient) Send(fromName, fromAddr string, email *Message, address ...string) error {
 	fmt.Printf("FROM: %s <%s>\nTO: %s\nTEXT: %s\n", fromName, fromAddr, strings.Join(address, ", "), email.Text)
 	return nil
 }
@@ -41,7 +42,7 @@ type Mailgun struct {
 	client *mailgun.MailgunImpl
 }
 
-func (mg *Mailgun) send(fromName, fromAddr string, email *Email, address ...string) error {
+func (mg *Mailgun) Send(fromName, fromAddr string, email *Message, address ...string) error {
 	message := mg.client.NewMessage(
 		fmt.Sprintf("%s <%s>", fromName, fromAddr),
 		email.Subject,
@@ -67,7 +68,7 @@ type SMTP struct {
 	tlsConfig *tls.Config
 }
 
-func (sm *SMTP) send(fromName, fromAddr string, email *Email, address ...string) error {
+func (sm *SMTP) Send(fromName, fromAddr string, email *Message, address ...string) error {
 	server := fmt.Sprintf("%s:%d", sm.server, sm.port)
 	from := fmt.Sprintf("%s <%s>", fromName, fromAddr)
 	var wg sync.WaitGroup
@@ -93,18 +94,19 @@ func (sm *SMTP) send(fromName, fromAddr string, email *Email, address ...string)
 	return err
 }
 
-// Emailer contains the email sender, email content, and methods to construct message content.
+// Emailer contains the email sender, translations, and methods to construct messages.
 type Emailer struct {
 	fromAddr, fromName string
 	lang               emailLang
-	sender             emailClient
+	sender             EmailClient
 }
 
-// Email stores content.
+// Message stores content.
-type Email struct {
+type Message struct {
-	Subject string `json:"subject"`
+	Subject  string `json:"subject"`
-	HTML    string `json:"html"`
+	HTML     string `json:"html"`
-	Text    string `json:"text"`
+	Text     string `json:"text"`
+	Markdown string `json:"markdown"`
 }
 
 func (emailer *Emailer) formatExpiry(expiry time.Time, tzaware bool, datePattern, timePattern string) (d, t, expiresIn string) {
@@ -154,7 +156,7 @@ func NewEmailer(app *appContext) *Emailer {
 	} else if method == "mailgun" {
 		emailer.NewMailgun(app.config.Section("mailgun").Key("api_url").String(), app.config.Section("mailgun").Key("api_key").String())
 	} else if method == "dummy" {
-		emailer.sender = &dummyClient{}
+		emailer.sender = &DummyClient{}
 	}
 	return emailer
 }
@@ -204,7 +206,7 @@ type templ interface {
 	Execute(wr io.Writer, data interface{}) error
 }
 
-func (emailer *Emailer) construct(app *appContext, section, keyFragment string, data map[string]interface{}) (html, text string, err error) {
+func (emailer *Emailer) construct(app *appContext, section, keyFragment string, data map[string]interface{}) (html, text, markdown string, err error) {
 	var tpl templ
 	if substituteStrings == "" {
 		data["jellyfin"] = "Jellyfin"
@@ -212,14 +214,31 @@ func (emailer *Emailer) construct(app *appContext, section, keyFragment string,
 		data["jellyfin"] = substituteStrings
 	}
 	var keys []string
-	if app.config.Section("email").Key("plaintext").MustBool(false) {
+	plaintext := app.config.Section("email").Key("plaintext").MustBool(false)
-		keys = []string{"text"}
+	telegram := app.config.Section("telegram").Key("enabled").MustBool(false)
-		text = ""
+	if plaintext {
+		if telegram {
+			keys = []string{"text"}
+			text, markdown = "", ""
+		} else {
+			keys = []string{"text"}
+			text = ""
+		}
 	} else {
-		keys = []string{"html", "text"}
+		if telegram {
+			keys = []string{"html", "text", "markdown"}
+		} else {
+			keys = []string{"html", "text"}
+		}
 	}
 	for _, key := range keys {
-		filesystem, fpath := app.GetPath(section, keyFragment+key)
+		var filesystem fs.FS
+		var fpath string
+		if key == "markdown" {
+			filesystem, fpath = app.GetPath(section, keyFragment+"text")
+		} else {
+			filesystem, fpath = app.GetPath(section, keyFragment+key)
+		}
 		if key == "html" {
 			tpl, err = template.ParseFS(filesystem, fpath)
 		} else {
@@ -228,15 +247,28 @@ func (emailer *Emailer) construct(app *appContext, section, keyFragment string,
 		if err != nil {
 			return
 		}
+		// For constructTemplate, if "md" is found in data it's used in stead of "text".
+		foundMarkdown := false
+		if key == "markdown" {
+			_, foundMarkdown = data["md"]
+			if foundMarkdown {
+				data["plaintext"], data["md"] = data["md"], data["plaintext"]
+			}
+		}
 		var tplData bytes.Buffer
 		err = tpl.Execute(&tplData, data)
 		if err != nil {
 			return
 		}
+		if foundMarkdown {
+			data["plaintext"], data["md"] = data["md"], data["plaintext"]
+		}
 		if key == "html" {
 			html = tplData.String()
-		} else {
+		} else if key == "text" {
 			text = tplData.String()
+		} else {
+			markdown = tplData.String()
 		}
 	}
 	return
@@ -257,7 +289,7 @@ func (emailer *Emailer) confirmationValues(code, username, key string, app *appC
 			template[v] = "{" + v + "}"
 		}
 	} else {
-		message := app.config.Section("email").Key("message").String()
+		message := app.config.Section("messages").Key("message").String()
 		inviteLink := app.config.Section("invite_emails").Key("url_base").String()
 		inviteLink = fmt.Sprintf("%s/%s?key=%s", inviteLink, code, key)
 		template["helloUser"] = emailer.lang.Strings.template("helloUser", tmpl{"username": username})
@@ -267,8 +299,8 @@ func (emailer *Emailer) confirmationValues(code, username, key string, app *appC
 	return template
 }
 
-func (emailer *Emailer) constructConfirmation(code, username, key string, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructConfirmation(code, username, key string, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("email_confirmation").Key("subject").MustString(emailer.lang.EmailConfirmation.get("title")),
 	}
 	var err error
@@ -282,7 +314,7 @@ func (emailer *Emailer) constructConfirmation(code, username, key string, app *a
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "email_confirmation", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "email_confirmation", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -290,17 +322,18 @@ func (emailer *Emailer) constructConfirmation(code, username, key string, app *a
 	return email, nil
 }
 
-func (emailer *Emailer) constructTemplate(subject, md string, app *appContext) (*Email, error) {
+func (emailer *Emailer) constructTemplate(subject, md string, app *appContext) (*Message, error) {
-	email := &Email{Subject: subject}
+	email := &Message{Subject: subject}
 	renderer := html.NewRenderer(html.RendererOptions{Flags: html.Smartypants})
 	html := markdown.ToHTML([]byte(md), nil, renderer)
 	text := stripMarkdown(md)
-	message := app.config.Section("email").Key("message").String()
+	message := app.config.Section("messages").Key("message").String()
 	var err error
-	email.HTML, email.Text, err = emailer.construct(app, "template_email", "email_", map[string]interface{}{
+	email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "template_email", "email_", map[string]interface{}{
 		"text":      template.HTML(html),
 		"plaintext": text,
 		"message":   message,
+		"md":        md,
 	})
 	if err != nil {
 		return nil, err
@@ -311,7 +344,7 @@ func (emailer *Emailer) constructTemplate(subject, md string, app *appContext) (
 func (emailer *Emailer) inviteValues(code string, invite Invite, app *appContext, noSub bool) map[string]interface{} {
 	expiry := invite.ValidTill
 	d, t, expiresIn := emailer.formatExpiry(expiry, false, app.datePattern, app.timePattern)
-	message := app.config.Section("email").Key("message").String()
+	message := app.config.Section("messages").Key("message").String()
 	inviteLink := app.config.Section("invite_emails").Key("url_base").String()
 	inviteLink = fmt.Sprintf("%s/%s", inviteLink, code)
 	template := map[string]interface{}{
@@ -338,8 +371,8 @@ func (emailer *Emailer) inviteValues(code string, invite Invite, app *appContext
 	return template
 }
 
-func (emailer *Emailer) constructInvite(code string, invite Invite, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructInvite(code string, invite Invite, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("invite_emails").Key("subject").MustString(emailer.lang.InviteEmail.get("title")),
 	}
 	template := emailer.inviteValues(code, invite, app, noSub)
@@ -353,7 +386,7 @@ func (emailer *Emailer) constructInvite(code string, invite Invite, app *appCont
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "invite_emails", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "invite_emails", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -377,8 +410,8 @@ func (emailer *Emailer) expiryValues(code string, invite Invite, app *appContext
 	return template
 }
 
-func (emailer *Emailer) constructExpiry(code string, invite Invite, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructExpiry(code string, invite Invite, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: emailer.lang.InviteExpiry.get("title"),
 	}
 	var err error
@@ -392,7 +425,7 @@ func (emailer *Emailer) constructExpiry(code string, invite Invite, app *appCont
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "notifications", "expiry_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "notifications", "expiry_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -431,8 +464,8 @@ func (emailer *Emailer) createdValues(code, username, address string, invite Inv
 	return template
 }
 
-func (emailer *Emailer) constructCreated(code, username, address string, invite Invite, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructCreated(code, username, address string, invite Invite, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: emailer.lang.UserCreated.get("title"),
 	}
 	template := emailer.createdValues(code, username, address, invite, app, noSub)
@@ -446,7 +479,7 @@ func (emailer *Emailer) constructCreated(code, username, address string, invite
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "notifications", "created_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "notifications", "created_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -456,7 +489,7 @@ func (emailer *Emailer) constructCreated(code, username, address string, invite
 
 func (emailer *Emailer) resetValues(pwr PasswordReset, app *appContext, noSub bool) map[string]interface{} {
 	d, t, expiresIn := emailer.formatExpiry(pwr.Expiry, true, app.datePattern, app.timePattern)
-	message := app.config.Section("email").Key("message").String()
+	message := app.config.Section("messages").Key("message").String()
 	template := map[string]interface{}{
 		"someoneHasRequestedReset": emailer.lang.PasswordReset.get("someoneHasRequestedReset"),
 		"ifItWasNotYou":            emailer.lang.Strings.get("ifItWasNotYou"),
@@ -505,8 +538,8 @@ func (emailer *Emailer) resetValues(pwr PasswordReset, app *appContext, noSub bo
 	return template
 }
 
-func (emailer *Emailer) constructReset(pwr PasswordReset, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructReset(pwr PasswordReset, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("password_resets").Key("subject").MustString(emailer.lang.PasswordReset.get("title")),
 	}
 	template := emailer.resetValues(pwr, app, noSub)
@@ -520,7 +553,7 @@ func (emailer *Emailer) constructReset(pwr PasswordReset, app *appContext, noSub
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "password_resets", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "password_resets", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -541,13 +574,13 @@ func (emailer *Emailer) deletedValues(reason string, app *appContext, noSub bool
 		}
 	} else {
 		template["reason"] = reason
-		template["message"] = app.config.Section("email").Key("message").String()
+		template["message"] = app.config.Section("messages").Key("message").String()
 	}
 	return template
 }
 
-func (emailer *Emailer) constructDeleted(reason string, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructDeleted(reason string, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("deletion").Key("subject").MustString(emailer.lang.UserDeleted.get("title")),
 	}
 	var err error
@@ -561,7 +594,7 @@ func (emailer *Emailer) constructDeleted(reason string, app *appContext, noSub b
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "deletion", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "deletion", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -582,13 +615,13 @@ func (emailer *Emailer) disabledValues(reason string, app *appContext, noSub boo
 		}
 	} else {
 		template["reason"] = reason
-		template["message"] = app.config.Section("email").Key("message").String()
+		template["message"] = app.config.Section("messages").Key("message").String()
 	}
 	return template
 }
 
-func (emailer *Emailer) constructDisabled(reason string, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructDisabled(reason string, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("disable_enable").Key("subject_disabled").MustString(emailer.lang.UserDisabled.get("title")),
 	}
 	var err error
@@ -602,7 +635,7 @@ func (emailer *Emailer) constructDisabled(reason string, app *appContext, noSub
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "disable_enable", "disabled_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "disable_enable", "disabled_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -623,13 +656,13 @@ func (emailer *Emailer) enabledValues(reason string, app *appContext, noSub bool
 		}
 	} else {
 		template["reason"] = reason
-		template["message"] = app.config.Section("email").Key("message").String()
+		template["message"] = app.config.Section("messages").Key("message").String()
 	}
 	return template
 }
 
-func (emailer *Emailer) constructEnabled(reason string, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructEnabled(reason string, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("disable_enable").Key("subject_enabled").MustString(emailer.lang.UserEnabled.get("title")),
 	}
 	var err error
@@ -643,7 +676,7 @@ func (emailer *Emailer) constructEnabled(reason string, app *appContext, noSub b
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "disable_enable", "enabled_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "disable_enable", "enabled_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -668,7 +701,7 @@ func (emailer *Emailer) welcomeValues(username string, expiry time.Time, app *ap
 	} else {
 		template["jellyfinURL"] = app.config.Section("jellyfin").Key("public_server").String()
 		template["username"] = username
-		template["message"] = app.config.Section("email").Key("message").String()
+		template["message"] = app.config.Section("messages").Key("message").String()
 		exp := app.formatDatetime(expiry)
 		if !expiry.IsZero() {
 			if custom {
@@ -683,8 +716,8 @@ func (emailer *Emailer) welcomeValues(username string, expiry time.Time, app *ap
 	return template
 }
 
-func (emailer *Emailer) constructWelcome(username string, expiry time.Time, app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructWelcome(username string, expiry time.Time, app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("welcome_email").Key("subject").MustString(emailer.lang.WelcomeEmail.get("title")),
 	}
 	var err error
@@ -708,7 +741,7 @@ func (emailer *Emailer) constructWelcome(username string, expiry time.Time, app
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "welcome_email", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "welcome_email", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -723,13 +756,13 @@ func (emailer *Emailer) userExpiredValues(app *appContext, noSub bool) map[strin
 		"message":               "",
 	}
 	if !noSub {
-		template["message"] = app.config.Section("email").Key("message").String()
+		template["message"] = app.config.Section("messages").Key("message").String()
 	}
 	return template
 }
 
-func (emailer *Emailer) constructUserExpired(app *appContext, noSub bool) (*Email, error) {
+func (emailer *Emailer) constructUserExpired(app *appContext, noSub bool) (*Message, error) {
-	email := &Email{
+	email := &Message{
 		Subject: app.config.Section("user_expiry").Key("subject").MustString(emailer.lang.UserExpired.get("title")),
 	}
 	var err error
@@ -743,7 +776,7 @@ func (emailer *Emailer) constructUserExpired(app *appContext, noSub bool) (*Emai
 		)
 		email, err = emailer.constructTemplate(email.Subject, content, app)
 	} else {
-		email.HTML, email.Text, err = emailer.construct(app, "user_expiry", "email_", template)
+		email.HTML, email.Text, email.Markdown, err = emailer.construct(app, "user_expiry", "email_", template)
 	}
 	if err != nil {
 		return nil, err
@@ -752,6 +785,31 @@ func (emailer *Emailer) constructUserExpired(app *appContext, noSub bool) (*Emai
 }
 
 // calls the send method in the underlying emailClient.
-func (emailer *Emailer) send(email *Email, address ...string) error {
+func (emailer *Emailer) send(email *Message, address ...string) error {
-	return emailer.sender.send(emailer.fromName, emailer.fromAddr, email, address...)
+	return emailer.sender.Send(emailer.fromName, emailer.fromAddr, email, address...)
+}
+
+func (app *appContext) sendByID(email *Message, ID ...string) error {
+	for _, id := range ID {
+		var err error
+		if tgChat, ok := app.storage.telegram[id]; ok && tgChat.Contact && telegramEnabled {
+			err = app.telegram.Send(email, tgChat.ChatID)
+		} else if address, ok := app.storage.emails[id]; ok {
+			err = app.email.send(email, address.(string))
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *appContext) getAddressOrName(jfID string) string {
+	if tgChat, ok := app.storage.telegram[jfID]; ok && tgChat.Contact && telegramEnabled {
+		return "@" + tgChat.Username
+	}
+	if addr, ok := app.storage.emails[jfID]; ok {
+		return addr.(string)
+	}
+	return ""
 }

go.mod

@@ -17,29 +17,28 @@ require (
 	github.com/gin-contrib/pprof v1.3.0
 	github.com/gin-contrib/static v0.0.0-20200916080430-d45d9a37d28e
 	github.com/gin-gonic/gin v1.6.3
-	github.com/go-chi/chi v4.1.2+incompatible // indirect
 	github.com/go-openapi/spec v0.20.3 // indirect
 	github.com/go-openapi/swag v0.19.15 // indirect
 	github.com/go-playground/validator/v10 v10.4.1 // indirect
+	github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible // indirect
 	github.com/golang/protobuf v1.4.3 // indirect
-	github.com/gomarkdown/markdown v0.0.0-20210208175418-bda154fe17d8
+	github.com/gomarkdown/markdown v0.0.0-20210408062403-ad838ccf8cdd
 	github.com/google/uuid v1.1.2 // indirect
 	github.com/hrfee/jfa-go/common v0.0.0-20210105184019-fdc97b4e86cc
 	github.com/hrfee/jfa-go/docs v0.0.0-20201112212552-b6f3cd7c1f71
-	github.com/hrfee/jfa-go/logger v0.0.0-00010101000000-000000000000 // indirect
+	github.com/hrfee/jfa-go/logger v0.0.0-00010101000000-000000000000
 	github.com/hrfee/jfa-go/ombi v0.0.0-20201112212552-b6f3cd7c1f71
 	github.com/hrfee/mediabrowser v0.3.3
 	github.com/itchyny/timefmt-go v0.1.2
-	github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible
+	github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible
 	github.com/lithammer/shortuuid/v3 v3.0.4
-	github.com/mailgun/mailgun-go/v4 v4.3.0
+	github.com/mailgun/mailgun-go/v4 v4.5.1
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
 	github.com/smartystreets/goconvey v1.6.4 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/swaggo/files v0.0.0-20190704085106-630677cd5c14
 	github.com/swaggo/gin-swagger v1.3.0
 	github.com/swaggo/swag v1.7.0 // indirect
+	github.com/technoweenie/multipartstreamer v1.0.1 // indirect
 	github.com/ugorji/go v1.2.0 // indirect
 	github.com/writeas/go-strip-markdown v2.0.1+incompatible
 	golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9 // indirect

go.sum

@@ -58,9 +58,6 @@ github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmC
 github.com/gin-gonic/gin v1.6.2/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
 github.com/gin-gonic/gin v1.6.3 h1:ahKqKTFpO5KTPHxWZjEdPScmYaGtLo8Y4DMHoEsnp14=
 github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
-github.com/go-chi/chi v4.0.0+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
-github.com/go-chi/chi v4.1.2+incompatible h1:fGFk2Gmi/YKXk0OmGfBh0WgmN3XB8lVnEyNz34tQRec=
-github.com/go-chi/chi v4.1.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
 github.com/go-openapi/jsonpointer v0.17.0/go.mod h1:cOnomiV+CVVwFLk0A/MExoFMjwdsUdVpsRhURCKh+3M=
 github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg=
 github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
@@ -96,6 +93,8 @@ github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+
 github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI=
 github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7aM3F26W0hOn+GE=
 github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
+github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible h1:2cauKuaELYAEARXRkq2LrJ0yDDv1rW7+wrTEdVL3uaU=
+github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible/go.mod h1:qf9acutJ8cwBUhm1bqgz6Bei9/C/c93FPDljKWwsOgM=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1 h1:G5FRp8JnTd7RQH5kemVNlMeyXQAztQ3mOWV95KxsXH8=
@@ -112,8 +111,8 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/gomarkdown/markdown v0.0.0-20210208175418-bda154fe17d8 h1:nWU6p08f1VgIalT6iZyqXi4o5cZsz4X6qa87nusfcsc=
+github.com/gomarkdown/markdown v0.0.0-20210408062403-ad838ccf8cdd h1:0b8AqsWQb6A0jjx80UXLG/uMTXQkGD0IGuXWqsrNz1M=
-github.com/gomarkdown/markdown v0.0.0-20210208175418-bda154fe17d8/go.mod h1:aii0r/K0ZnHv7G0KF7xy1v0A7s2Ljrb5byB7MO5p6TU=
+github.com/gomarkdown/markdown v0.0.0-20210408062403-ad838ccf8cdd/go.mod h1:aii0r/K0ZnHv7G0KF7xy1v0A7s2Ljrb5byB7MO5p6TU=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
@@ -127,12 +126,14 @@ github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/hrfee/mediabrowser v0.3.3 h1:7E05uiol8hh2ytKn3WVLrUIvHAyifYEIy3Y5qtuNh8I=
 github.com/hrfee/mediabrowser v0.3.3/go.mod h1:PnHZbdxmbv1wCVdAQyM7nwPwpVj9fdKx2EcET7sAk+U=
 github.com/itchyny/timefmt-go v0.1.2 h1:q0Xa4P5it6K6D7ISsbLAMwx1PnWlixDcJL6/sFs93Hs=
 github.com/itchyny/timefmt-go v0.1.2/go.mod h1:0osSSCQSASBJMsIZnhAaF1C2fCBTJZXrnj37mG8/c+A=
-github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible h1:CL0ooBNfbNyJTJATno+m0h+zM5bW6v7fKlboKUGP/dI=
+github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible h1:jdpOPRN1zP63Td1hDQbZW73xKmzDvZHzVdNYxhnTMDA=
-github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible/go.mod h1:1c7szIrayyPPB/987hsnvNzLushdWf4o/79s3P08L8A=
+github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible/go.mod h1:1c7szIrayyPPB/987hsnvNzLushdWf4o/79s3P08L8A=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
@@ -156,8 +157,8 @@ github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
 github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
 github.com/lithammer/shortuuid/v3 v3.0.4 h1:uj4xhotfY92Y1Oa6n6HUiFn87CdoEHYUlTy0+IgbLrs=
 github.com/lithammer/shortuuid/v3 v3.0.4/go.mod h1:RviRjexKqIzx/7r1peoAITm6m7gnif/h+0zmolKJjzw=
-github.com/mailgun/mailgun-go/v4 v4.3.0 h1:9nAF7LI3k6bfDPbMZQMMl63Q8/vs+dr1FUN8eR1XMhk=
+github.com/mailgun/mailgun-go/v4 v4.5.1 h1:XrQQ/ZgqFvINRKy+eBqowLl7k3pQO6OCLpKphliMOFs=
-github.com/mailgun/mailgun-go/v4 v4.3.0/go.mod h1:fWuBI2iaS/pSSyo6+EBpHjatQO3lV8onwqcRy7joSJI=
+github.com/mailgun/mailgun-go/v4 v4.5.1/go.mod h1:FJlF9rI5cQT+mrwujtJjPMbIVy3Ebor9bKTVsJ0QU40=
 github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
@@ -180,9 +181,8 @@ github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 h1:gQz4mCbXsO+nc9n1hCxHcGA3Zx3Eo+UHZoInFGUIXNM=
@@ -197,8 +197,6 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykE
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
-github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
-github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
@@ -216,6 +214,8 @@ github.com/swaggo/swag v1.5.1/go.mod h1:1Bl9F/ZBpVWh22nY0zmYyASPO1lI/zIwRDrpZU+t
 github.com/swaggo/swag v1.6.7/go.mod h1:xDhTyuFIujYiN3DKWC/H/83xcfHp+UE/IzWWampG7Zc=
 github.com/swaggo/swag v1.7.0 h1:5bCA/MTLQoIqDXXyHfOpMeDvL9j68OY/udlK4pQoo4E=
 github.com/swaggo/swag v1.7.0/go.mod h1:BdPIL73gvS9NBsdi7M1JOxLvlbfvNRaBP8m6WT6Aajo=
+github.com/technoweenie/multipartstreamer v1.0.1 h1:XRztA5MXiR1TIRHxH2uNxXxaIkKQDeX7m2XsSOlQEnM=
+github.com/technoweenie/multipartstreamer v1.0.1/go.mod h1:jNVxdtShOxzAsukZwTSw6MDx5eUJoiEBsSvzDU9uzog=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/ugorji/go v1.1.5-pre/go.mod h1:FwP/aQVg39TXzItUBMwnWp9T9gPQnXw4Poh4/oBQZ/0=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=

html/admin.html

@@ -6,6 +6,7 @@
             window.URLBase = "{{ .urlBase }}";
             window.notificationsEnabled = {{ .notifications }};
             window.emailEnabled = {{ .email_enabled }};
+            window.telegramEnabled = {{ .telegram_enabled }};
             window.ombiEnabled = {{ .ombiEnabled }};
             window.usernameEnabled = {{ .username }};
             window.langFile = JSON.parse({{ .language }});
@@ -179,8 +180,8 @@
         </div>
         <div id="modal-customize" class="modal">
             <div class="modal-content card">
-                <span class="heading">{{ .strings.customizeEmails }} <span class="modal-close">&times;</span></span>
+                <span class="heading">{{ .strings.customizeMessages }} <span class="modal-close">&times;</span></span>
-                <p class="content">{{ .strings.customizeEmailsDescription }}</p>
+                <p class="content">{{ .strings.customizeMessagesDescription }}</p>
                 <div class="table-responsive">
                     <table class="table">
                         <thead>
@@ -308,6 +309,24 @@
                 <span class="button ~urge !normal full-width center" id="update-update">{{ .strings.update }}</span>
             </div>
         </div>
+        {{ if .telegram_enabled }}
+        <div id="modal-telegram" class="modal">
+            <div class="modal-content card">
+                <span class="heading mb-1">{{ .strings.linkTelegram }}</span>
+                <p class="content mb-1">{{ .strings.sendPIN }}</p>
+                <h1 class="ac" id="telegram-pin"></h1>
+                <a class="subheading link-center" id="telegram-link" target="_blank">
+                    <span class="shield ~info mr-1">
+                        <span class="icon">
+                            <i class="ri-telegram-line"></i>
+                        </span>
+                    </span>
+                    &#64;<span id="telegram-username">
+                </a>
+                <span class="button ~info !normal full-width center mt-1" id="telegram-waiting">{{ .strings.success }}</span>
+            </div>
+        </div>
+        {{ end }}
         <div id="notification-box"></div>
         <span class="dropdown" tabindex="0" id="lang-dropdown">
             <span class="button ~urge dropdown-button">
@@ -503,6 +522,9 @@
                                     <th><input type="checkbox" value="" id="accounts-select-all"></th>
                                     <th>{{ .strings.username }}</th>
                                     <th>{{ .strings.emailAddress }}</th>
+                                    {{ if .telegram_enabled }}
+                                    <th>Telegram</th>
+                                    {{ end }}
                                     <th>{{ .strings.expiry }}</th>
                                     <th>{{ .strings.lastActiveTime }}</th>
                                 </tr>

html/form-base.html

@@ -14,6 +14,9 @@
     window.userExpiryHours = {{ .userExpiryHours }};
     window.userExpiryMinutes = {{ .userExpiryMinutes }};
     window.userExpiryMessage = {{ .userExpiryMessage }};
+    window.telegramEnabled = {{ .telegramEnabled }};
+    window.telegramRequired = {{ .telegramRequired }};
+    window.telegramPIN = "{{ .telegramPIN }}";
 </script>
 <script src="js/form.js" type="module"></script>
 {{ end }}

html/form.html

@@ -19,6 +19,24 @@
                 <p class="content mb-1">{{ .strings.confirmationRequiredMessage }}</p>
             </div>
         </div>
+        {{ if .telegramEnabled }}
+        <div id="modal-telegram" class="modal">
+            <div class="modal-content card">
+                <span class="heading mb-1">{{ .strings.linkTelegram }}</span>
+                <p class="content mb-1">{{ .strings.sendPIN }}</p>
+                <h1 class="ac">{{ .telegramPIN }}</h1>
+                <a class="subheading link-center" href="{{ .telegramURL }}" target="_blank">
+                    <span class="shield ~info mr-1">
+                        <span class="icon">
+                            <i class="ri-telegram-line"></i>
+                        </span>
+                    </span>
+                    &#64;{{ .telegramUsername }}
+                </a>
+                <span class="button ~info !normal full-width center mt-1" id="telegram-waiting">{{ .strings.success }}</span>
+            </div>
+        </div>
+        {{ end }}
         <span class="dropdown" tabindex="0" id="lang-dropdown">
             <span class="button ~urge dropdown-button">
                 <i class="ri-global-line"></i>
@@ -29,6 +47,7 @@
                 </div>
             </div>
         </span>
+        <div id="notification-box"></div>
         <div class="page-container">
             <div class="card ~neutral !low">
                 <div class="row baseline">
@@ -48,7 +67,17 @@
                             
                             <label class="label supra" for="create-email">{{ .strings.emailAddress }}</label>
                             <input type="email" class="input ~neutral !high mt-half mb-1" placeholder="{{ .strings.emailAddress }}" id="create-email" aria-label="{{ .strings.emailAddress }}" value="{{ .email }}">
-                            
+                            {{ if .telegramEnabled }}
+                            <span class="button ~info !normal full-width center mb-1" id="link-telegram">{{ .strings.linkTelegram }}</span>
+                            <div id="contact-via" class="unfocused">
+                                <label class="row switch pb-1">
+                                    <input type="radio" name="contact-via" value="email"><span>Contact through Email</span>
+                                </label>
+                                <label class="row switch pb-1">
+                                    <input type="radio" name="contact-via" value="telegram" id="contact-via-telegram"><span>Contact through Telegram</span>
+                                </label>
+                            </div>
+                            {{ end }}
                             <label class="label supra" for="create-password">{{ .strings.password }}</label>
                             <input type="password" class="input ~neutral !high mt-half mb-1" placeholder="{{ .strings.password }}" id="create-password" aria-label="{{ .strings.password }}">
                             

internal.go

@@ -13,7 +13,7 @@ const binaryType = "internal"
 //go:embed data data/html data/web data/web/css data/web/js
 var loFS embed.FS
 
-//go:embed lang/common lang/admin lang/email lang/form lang/setup lang/pwreset
+//go:embed lang/common lang/admin lang/email lang/form lang/setup lang/pwreset lang/telegram
 var laFS embed.FS
 
 var langFS rewriteFS

lang.go

@@ -136,6 +136,23 @@ func (ls *setupLangs) getOptions() [][2]string {
 	return opts
 }
 
+type telegramLangs map[string]telegramLang
+
+type telegramLang struct {
+	Meta    langMeta    `json:"meta"`
+	Strings langSection `json:"strings"`
+}
+
+func (ts *telegramLangs) getOptions() [][2]string {
+	opts := make([][2]string, len(*ts))
+	i := 0
+	for key, lang := range *ts {
+		opts[i] = [2]string{key, lang.Meta.Name}
+		i++
+	}
+	return opts
+}
+
 type langSection map[string]string
 type tmpl map[string]string
 

lang/admin/de-de.json

@@ -69,8 +69,8 @@
         "preview": "Vorschau",
         "reset": "Zurücksetzen",
         "edit": "Bearbeiten",
-        "customizeEmails": "E-Mails anpassen",
+        "customizeMessages": "E-Mails anpassen",
-        "customizeEmailsDescription": "Wenn du jfa-go's E-Mail-Vorlagen nicht benutzen willst, kannst du deinen eigenen unter Verwendung von Markdown erstellen.",
+        "customizeMessagesDescription": "Wenn du jfa-go's E-Mail-Vorlagen nicht benutzen willst, kannst du deinen eigenen unter Verwendung von Markdown erstellen.",
         "announce": "Ankündigen",
         "subject": "E-Mail-Betreff",
         "message": "Nachricht",

lang/admin/el-gr.json

@@ -69,9 +69,9 @@
         "preview": "Προεπισκόπηση",
         "reset": "Επαναφορά",
         "edit": "Επεξεργασία",
-        "customizeEmails": "Παραμετροποίηση Emails",
+        "customizeMessages": "Παραμετροποίηση Emails",
         "advancedSettings": "Προχωρημένες Ρυθμίσεις",
-        "customizeEmailsDescription": "Αν δεν θέλετε να ζρησιμοποιήσετε τα πρότυπα email του jfa-go, μπορείτε να δημιουργήσετε τα δικά σας με χρήση Markdown.",
+        "customizeMessagesDescription": "Αν δεν θέλετε να ζρησιμοποιήσετε τα πρότυπα email του jfa-go, μπορείτε να δημιουργήσετε τα δικά σας με χρήση Markdown.",
         "updates": "Ενημερώσεις",
         "update": "Ενημέρωση",
         "download": "Λήψη",

lang/admin/en-us.json

@@ -46,7 +46,7 @@
         "unknown": "Unknown",
         "label": "Label",
         "announce": "Announce",
-        "subject": "Email Subject",
+        "subject": "Subject",
         "message": "Message",
         "variables": "Variables",
         "conditionals": "Conditionals",
@@ -54,14 +54,15 @@
         "reset": "Reset",
         "edit": "Edit",
         "donate": "Donate",
+        "contactThrough": "Contact through:",
         "extendExpiry": "Extend expiry",
-        "customizeEmails": "Customize Emails",
+        "customizeMessages": "Customize Messages",
-        "customizeEmailsDescription": "If you don't want to use jfa-go's email templates, you can create your own using Markdown.",
+        "customizeMessagesDescription": "If you don't want to use jfa-go's message templates, you can create your own using Markdown.",
         "markdownSupported": "Markdown is supported.",
         "modifySettings": "Modify Settings",
         "modifySettingsDescription": "Apply settings from an existing profile, or source them directly from a user.",
         "applyHomescreenLayout": "Apply homescreen layout",
-        "sendDeleteNotificationEmail": "Send notification email",
+        "sendDeleteNotificationEmail": "Send notification message",
         "sendDeleteNotifiationExample": "Your account has been deleted.",
         "settingsRestart": "Restart",
         "settingsRestarting": "Restarting…",
@@ -92,7 +93,8 @@
         "inviteExpiresInTime": "Expires in {n}",
         "notifyEvent": "Notify on:",
         "notifyInviteExpiry": "On expiry",
-        "notifyUserCreation": "On user creation"
+        "notifyUserCreation": "On user creation",
+        "sendPIN": "Ask the user to send the PIN below to the bot."
     },
     "notifications": {
         "changedEmailAddress": "Changed email address of {n}.",
@@ -104,6 +106,7 @@
         "setOmbiDefaults": "Stored ombi defaults.",
         "updateApplied": "Update applied, please restart.",
         "updateAppliedRefresh": "Update applied, please refresh.",
+        "telegramVerified": "Telegram account verified.",
         "errorConnection": "Couldn't connect to jfa-go.",
         "error401Unauthorized": "Unauthorized. Try refreshing the page.",
         "errorSettingsAppliedNoHomescreenLayout": "Settings were applied, but applying homescreen layout may have failed.",
@@ -126,7 +129,7 @@
         "errorFailureCheckLogs": "Failed (check console/logs)",
         "errorPartialFailureCheckLogs": "Partial failure (check console/logs)",
         "errorUserCreated": "Failed to create user {n}.",
-        "errorSendWelcomeEmail": "Failed to send welcome email (check console/logs)",
+        "errorSendWelcomeEmail": "Failed to send welcome message (check console/logs)",
         "errorApplyUpdate": "Failed to apply update, try manually.",
         "errorCheckUpdate": "Failed to check for update.",
         "updateAvailable": "A new update is available, check settings.",

lang/admin/es-es.json

@@ -53,8 +53,8 @@
         "reset": "Reiniciar",
         "edit": "Editar",
         "extendExpiry": "Extender el vencimiento",
-        "customizeEmails": "Personalizar emails",
+        "customizeMessages": "Personalizar emails",
-        "customizeEmailsDescription": "Si no desea utilizar las plantillas de correo electrónico de jfa-go, puede crear las suyas propias con Markdown.",
+        "customizeMessagesDescription": "Si no desea utilizar las plantillas de correo electrónico de jfa-go, puede crear las suyas propias con Markdown.",
         "markdownSupported": "Se admite Markdown.",
         "modifySettings": "Modificar configuración",
         "modifySettingsDescription": "Aplique la configuración de un perfil existente u obténgalos directamente de un usuario.",

lang/admin/fr-fr.json

@@ -68,15 +68,15 @@
         "settingsRestarting": "Redémarrage…",
         "settingsRestart": "Redémarrer",
         "announce": "Annoncer",
-        "subject": "Sujet du courriel",
+        "subject": "Sujet",
         "message": "Message",
         "markdownSupported": "Markdown est pris en charge.",
-        "customizeEmailsDescription": "Si vous ne souhaitez pas utiliser les modèles d'e-mails de jfa-go, vous pouvez créer les vôtres à l'aide de Markdown.",
+        "customizeMessagesDescription": "Si vous ne souhaitez pas utiliser les modèles d'e-mails de jfa-go, vous pouvez créer les vôtres à l'aide de Markdown.",
         "variables": "Variables",
         "preview": "Aperçu",
         "reset": "Réinitialiser",
         "edit": "Éditer",
-        "customizeEmails": "Personnaliser les e-mails",
+        "customizeMessages": "Personnaliser les e-mails",
         "inviteDuration": "Durée de l'invitation",
         "enabled": "Activé",
         "disabled": "Désactivé",

lang/admin/id-id.json

@@ -69,8 +69,8 @@
         "preview": "Pratinjau",
         "reset": "Setel ulang",
         "edit": "Edit",
-        "customizeEmails": "Sesuaikan Email",
+        "customizeMessages": "Sesuaikan Email",
-        "customizeEmailsDescription": "Jika Anda tidak ingin menggunakan templat email jfa-go, Anda dapat membuatnya sendiri menggunakan Markdown.",
+        "customizeMessagesDescription": "Jika Anda tidak ingin menggunakan templat email jfa-go, Anda dapat membuatnya sendiri menggunakan Markdown.",
         "announce": "Mengumumkan",
         "subject": "Subjek Email",
         "message": "Pesan",

lang/admin/nl-nl.json

@@ -70,11 +70,11 @@
         "subject": "E-mailonderwerp",
         "message": "Bericht",
         "variables": "Variabelen",
-        "customizeEmailsDescription": "Als je de e-mailsjablonen van jfa-go niet wilt gebruiken, kun je met gebruik van Markdown je eigen aanmaken.",
+        "customizeMessagesDescription": "Als je de e-mailsjablonen van jfa-go niet wilt gebruiken, kun je met gebruik van Markdown je eigen aanmaken.",
         "preview": "Voorbeeld",
         "reset": "Resetten",
         "edit": "Bewerken",
-        "customizeEmails": "E-mails aanpassen",
+        "customizeMessages": "E-mails aanpassen",
         "inviteDuration": "Geldigheidsduur uitnodiging",
         "userExpiryDescription": "Een bepaalde tijd na elke aanmelding, wordt de account verwijderd/uitgeschakeld door jfa-go. Dit kan aangepast worden in de instellingen.",
         "enabled": "Ingeschakeld",

lang/admin/pt-br.json

@@ -69,12 +69,12 @@
         "subject": "Assunto do email",
         "message": "Mensagem",
         "markdownSupported": "Suporte a Markdown.",
-        "customizeEmailsDescription": "Se não quiser usar os modelos de email do jfa-go, você pode criar o seu próprio usando o Markdown.",
+        "customizeMessagesDescription": "Se não quiser usar os modelos de email do jfa-go, você pode criar o seu próprio usando o Markdown.",
         "variables": "Variáveis",
         "preview": "Pre-visualizar",
         "reset": "Reiniciar",
         "edit": "Editar",
-        "customizeEmails": "Customizar Emails",
+        "customizeMessages": "Customizar Emails",
         "disabled": "Desativado",
         "userExpiryDescription": "Após um determinado período de tempo de cada inscrição, o jfa-go apagará/desabilitará a conta. Você pode alterar essa opção nas configurações.",
         "inviteDuration": "Duração do Convite",

lang/admin/sv-se.json

@@ -37,8 +37,8 @@
         "preview": "Förhandsvisning",
         "reset": "Återställ",
         "edit": "Redigera",
-        "customizeEmails": "Anpassa e-post",
+        "customizeMessages": "Anpassa e-post",
-        "customizeEmailsDescription": "Om du inte vill använda jfa-go's e-postmallar, så kan du skapa dina egna med Markdown.",
+        "customizeMessagesDescription": "Om du inte vill använda jfa-go's e-postmallar, så kan du skapa dina egna med Markdown.",
         "markdownSupported": "Markdown stöds.",
         "modifySettings": "Ändra inställningar",
         "modifySettingsDescription": "Tillämpa inställningar från en befintlig profil eller kopiera dem direkt från en användare.",

lang/common/en-us.json

@@ -14,6 +14,9 @@
         "copied": "Copied",
         "time24h": "24h Time",
         "time12h": "12h Time",
+        "linkTelegram": "Link Telegram",
+        "contactEmail": "Contact through Email",
+        "contactTelegram": "Contact through Telegram",
         "theme": "Theme"
     }
 }

lang/email/en-us.json

@@ -3,7 +3,7 @@
         "name": "English (US)"
     },
     "strings": {
-        "ifItWasNotYou": "If this wasn't you, please ignore this email.",
+        "ifItWasNotYou": "If this wasn't you, please ignore this.",
         "helloUser": "Hi {username},",
         "reason": "Reason"
     },
@@ -55,7 +55,7 @@
         "linkButton": "Setup your account"
     },
     "welcomeEmail": {
-        "name": "Welcome email",
+        "name": "Welcome",
         "title": "Welcome to Jellyfin",
         "welcome": "Welcome to Jellyfin!",
         "youCanLoginWith": "You can login with the details below",

lang/form/en-us.json

@@ -17,11 +17,15 @@
         "successContinueButton": "Continue",
         "confirmationRequired": "Email confirmation required",
         "confirmationRequiredMessage": "Please check your email inbox to verify your address.",
-        "yourAccountIsValidUntil": "Your account will be valid until {date}."
+        "yourAccountIsValidUntil": "Your account will be valid until {date}.",
+        "sendPIN": "Send the PIN below to the bot, then come back here to link your account."
     },
     "notifications": {
         "errorUserExists": "User already exists.",
-        "errorInvalidCode": "Invalid invite code."
+        "errorInvalidCode": "Invalid invite code.",
+        "errorTelegramVerification": "Telegram verification required.",
+        "errorInvalidPIN": "Telegram PIN is invalid.",
+        "telegramVerified": "Telegram account verified."
     },
     "validationStrings": {
         "length": {

main.go

@@ -93,6 +93,7 @@ type appContext struct {
 	storage          Storage
 	validator        Validator
 	email            *Emailer
+	telegram         *TelegramDaemon
 	info, debug, err logger.Logger
 	host             string
 	port             int
@@ -198,6 +199,12 @@ func start(asDaemon, firstCall bool) {
 	if err := app.loadConfig(); err != nil {
 		app.err.Fatalf("Failed to load config file \"%s\": %v", app.configPath, err)
 	}
+
+	// Some message settings have been moved from "email" to "messages", this will switch them.
+	if app.config.Section("email").Key("use_24h").Value() != "" {
+		app.migrateEmailConfig()
+	}
+
 	app.version = app.config.Section("jellyfin").Key("version").String()
 	// read from config...
 	debugMode = app.config.Section("ui").Key("debug").MustBool(false)
@@ -257,6 +264,7 @@ func start(asDaemon, firstCall bool) {
 	app.storage.lang.FormPath = "form"
 	app.storage.lang.AdminPath = "admin"
 	app.storage.lang.EmailPath = "email"
+	app.storage.lang.TelegramPath = "telegram"
 	app.storage.lang.PasswordResetPath = "pwreset"
 	externalLang := app.config.Section("files").Key("lang_files").MustString("")
 	var err error
@@ -325,6 +333,10 @@ func start(asDaemon, firstCall bool) {
 		if err := app.storage.loadUsers(); err != nil {
 			app.err.Printf("Failed to load Users: %v", err)
 		}
+		app.storage.telegram_path = app.config.Section("files").Key("telegram_users").String()
+		if err := app.storage.loadTelegramUsers(); err != nil {
+			app.err.Printf("Failed to load Telegram users: %v", err)
+		}
 
 		app.storage.profiles_path = app.config.Section("files").Key("user_profiles").String()
 		app.storage.loadProfiles()
@@ -541,6 +553,16 @@ func start(asDaemon, firstCall bool) {
 		if app.config.Section("updates").Key("enabled").MustBool(false) {
 			go app.checkForUpdates()
 		}
+
+		if telegramEnabled {
+			app.telegram, err = newTelegramDaemon(app)
+			if err != nil {
+				app.err.Printf("Failed to authenticate with Telegram: %v", err)
+			} else {
+				go app.telegram.run()
+				defer app.telegram.Shutdown()
+			}
+		}
 	} else {
 		debugMode = false
 		address = "0.0.0.0:8056"

models.go

@@ -11,10 +11,12 @@ type boolResponse struct {
 }
 
 type newUserDTO struct {
-	Username string `json:"username" example:"jeff" binding:"required"`  // User's username
+	Username        string `json:"username" example:"jeff" binding:"required"`  // User's username
-	Password string `json:"password" example:"guest" binding:"required"` // User's password
+	Password        string `json:"password" example:"guest" binding:"required"` // User's password
-	Email    string `json:"email" example:"jeff@jellyf.in"`              // User's email address
+	Email           string `json:"email" example:"jeff@jellyf.in"`              // User's email address
-	Code     string `json:"code" example:"abc0933jncjkcjj"`              // Invite code (required on /newUser)
+	Code            string `json:"code" example:"abc0933jncjkcjj"`              // Invite code (required on /newUser)
+	TelegramPIN     string `json:"telegram_pin" example:"A1-B2-3C"`             // Telegram verification PIN (if used)
+	TelegramContact bool   `json:"telegram_contact"`                            // Whether or not to use telegram for notifications/pwrs
 }
 
 type newUserResponse struct {
@@ -120,13 +122,15 @@ type deleteInviteDTO struct {
 }
 
 type respUser struct {
-	ID         string `json:"id" example:"fdgsdfg45534fa"`              // userID of user
+	ID                    string `json:"id" example:"fdgsdfg45534fa"`              // userID of user
-	Name       string `json:"name" example:"jeff"`                      // Username of user
+	Name                  string `json:"name" example:"jeff"`                      // Username of user
-	Email      string `json:"email,omitempty" example:"jeff@jellyf.in"` // Email address of user (if available)
+	Email                 string `json:"email,omitempty" example:"jeff@jellyf.in"` // Email address of user (if available)
-	LastActive int64  `json:"last_active" example:"1617737207510"`      // Time of last activity on Jellyfin
+	LastActive            int64  `json:"last_active" example:"1617737207510"`      // Time of last activity on Jellyfin
-	Admin      bool   `json:"admin" example:"false"`                    // Whether or not the user is Administrator
+	Admin                 bool   `json:"admin" example:"false"`                    // Whether or not the user is Administrator
-	Expiry     int64  `json:"expiry" example:"1617737207510"`           // Expiry time of user as Epoch/Unix time.
+	Expiry                int64  `json:"expiry" example:"1617737207510"`           // Expiry time of user as Epoch/Unix time.
-	Disabled   bool   `json:"disabled"`                                 // Whether or not the user is disabled.
+	Disabled              bool   `json:"disabled"`                                 // Whether or not the user is disabled.
+	Telegram              string `json:"telegram"`                                 // Telegram username (if known)
+	NotifyThroughTelegram bool   `json:"notify_telegram"`
 }
 
 type getUsersDTO struct {
@@ -234,3 +238,18 @@ type checkUpdateDTO struct {
 	New    bool   `json:"new"` // Whether or not there's a new update.
 	Update Update `json:"update"`
 }
+
+type telegramPinDTO struct {
+	Token    string `json:"token" example:"A1-B2-3C"`
+	Username string `json:"username"`
+}
+
+type telegramSetDTO struct {
+	Token string `json:"token" example:"A1-B2-3C"`
+	ID    string `json:"id"` // Jellyfin ID of user.
+}
+
+type telegramNotifyDTO struct {
+	ID      string `json:"id"`
+	Enabled bool   `json:"enabled"`
+}

pwreset.go

@@ -69,27 +69,24 @@ func pwrMonitor(app *appContext, watcher *fsnotify.Watcher) {
 						return
 					}
 					app.storage.loadEmails()
-					var address string
 					uid := user.ID
 					if uid == "" {
 						app.err.Printf("Couldn't get user ID for user \"%s\"", pwr.Username)
 						return
 					}
-					addr, ok := app.storage.emails[uid]
+					name := app.getAddressOrName(uid)
-					if !ok || addr == nil {
+					if name != "" {
-						app.err.Printf("Couldn't find email for user \"%s\". Make sure it's set", pwr.Username)
+						msg, err := app.email.constructReset(pwr, app, false)
-						return
+
-					}
+						if err != nil {
-					address = addr.(string)
+							app.err.Printf("Failed to construct password reset message for %s", pwr.Username)
-					msg, err := app.email.constructReset(pwr, app, false)
+							app.debug.Printf("%s: Error: %s", pwr.Username, err)
-					if err != nil {
+						} else if err := app.sendByID(msg, uid); err != nil {
-						app.err.Printf("Failed to construct password reset email for %s", pwr.Username)
+							app.err.Printf("Failed to send password reset message to \"%s\"", name)
-						app.debug.Printf("%s: Error: %s", pwr.Username, err)
+							app.debug.Printf("%s: Error: %s", pwr.Username, err)
-					} else if err := app.email.send(msg, address); err != nil {
+						} else {
-						app.err.Printf("Failed to send password reset email to \"%s\"", address)
+							app.info.Printf("Sent password reset message to \"%s\"", name)
-						app.debug.Printf("%s: Error: %s", pwr.Username, err)
+						}
-					} else {
-						app.info.Printf("Sent password reset email to \"%s\"", address)
 					}
 				} else {
 					app.err.Printf("Password reset for user \"%s\" has already expired (%s). Check your time settings.", pwr.Username, pwr.Expiry)

router.go

@@ -118,6 +118,9 @@ func (app *appContext) loadRoutes(router *gin.Engine) {
 		router.POST(p+"/newUser", app.NewUser)
 		router.Use(static.Serve(p+"/invite/", app.webFS))
 		router.GET(p+"/invite/:invCode", app.InviteProxy)
+		if telegramEnabled {
+			router.GET(p+"/invite/:invCode/telegram/verified/:pin", app.TelegramVerifiedInvite)
+		}
 	}
 	if *SWAGGER {
 		app.info.Print(warning("\n\nWARNING: Swagger should not be used on a public instance.\n\n"))
@@ -155,6 +158,12 @@ func (app *appContext) loadRoutes(router *gin.Engine) {
 		api.GET(p+"/config", app.GetConfig)
 		api.POST(p+"/config", app.ModifyConfig)
 		api.POST(p+"/restart", app.restart)
+		if telegramEnabled {
+			api.GET(p+"/telegram/pin", app.TelegramGetPin)
+			api.GET(p+"/telegram/verified/:pin", app.TelegramVerified)
+			api.POST(p+"/users/telegram", app.TelegramAddUser)
+			api.POST(p+"/users/telegram/notify", app.TelegramSetNotify)
+		}
 		if app.config.Section("ombi").Key("enabled").MustBool(false) {
 			api.GET(p+"/ombi/users", app.OmbiUsers)
 			api.POST(p+"/ombi/defaults", app.SetOmbiDefaults)

setup.go

@@ -29,7 +29,7 @@ func (app *appContext) ServeSetup(gc *gin.Context) {
 			"success_message": app.config.Section("ui").Key("success_message").String(),
 		},
 		"email": {
-			"message": app.config.Section("email").Key("message").String(),
+			"message": app.config.Section("messages").Key("message").String(),
 		},
 	}
 	msg, err := json.Marshal(messages)

storage.go

@@ -15,18 +15,26 @@ import (
 )
 
 type Storage struct {
-	timePattern                                                                                                                           string
+	timePattern                                                                                                                                          string
-	invite_path, emails_path, policy_path, configuration_path, displayprefs_path, ombi_path, profiles_path, customEmails_path, users_path string
+	invite_path, emails_path, policy_path, configuration_path, displayprefs_path, ombi_path, profiles_path, customEmails_path, users_path, telegram_path string
-	users                                                                                                                                 map[string]time.Time
+	users                                                                                                                                                map[string]time.Time
-	invites                                                                                                                               Invites
+	invites                                                                                                                                              Invites
-	profiles                                                                                                                              map[string]Profile
+	profiles                                                                                                                                             map[string]Profile
-	defaultProfile                                                                                                                        string
+	defaultProfile                                                                                                                                       string
-	emails, displayprefs, ombi_template                                                                                                   map[string]interface{}
+	emails, displayprefs, ombi_template                                                                                                                  map[string]interface{}
-	customEmails                                                                                                                          customEmails
+	telegram                                                                                                                                             map[string]TelegramUser // Map of Jellyfin User IDs to telegram users.
-	policy                                                                                                                                mediabrowser.Policy
+	customEmails                                                                                                                                         customEmails
-	configuration                                                                                                                         mediabrowser.Configuration
+	policy                                                                                                                                               mediabrowser.Policy
-	lang                                                                                                                                  Lang
+	configuration                                                                                                                                        mediabrowser.Configuration
-	invitesLock, usersLock                                                                                                                sync.Mutex
+	lang                                                                                                                                                 Lang
+	invitesLock, usersLock                                                                                                                               sync.Mutex
+}
+
+type TelegramUser struct {
+	ChatID   int64
+	Username string
+	Lang     string
+	Contact  bool // Whether to contact through telegram or not
 }
 
 type customEmails struct {
@@ -81,23 +89,26 @@ type Invite struct {
 }
 
 type Lang struct {
-	AdminPath         string
+	AdminPath          string
-	chosenAdminLang   string
+	chosenAdminLang    string
-	Admin             adminLangs
+	Admin              adminLangs
-	AdminJSON         map[string]string
+	AdminJSON          map[string]string
-	FormPath          string
+	FormPath           string
-	chosenFormLang    string
+	chosenFormLang     string
-	Form              formLangs
+	Form               formLangs
-	PasswordResetPath string
+	PasswordResetPath  string
-	chosenPWRLang     string
+	chosenPWRLang      string
-	PasswordReset     pwrLangs
+	PasswordReset      pwrLangs
-	EmailPath         string
+	EmailPath          string
-	chosenEmailLang   string
+	chosenEmailLang    string
-	Email             emailLangs
+	Email              emailLangs
-	CommonPath        string
+	CommonPath         string
-	Common            commonLangs
+	Common             commonLangs
-	SetupPath         string
+	SetupPath          string
-	Setup             setupLangs
+	Setup              setupLangs
+	chosenTelegramLang string
+	TelegramPath       string
+	Telegram           telegramLangs
 }
 
 func (st *Storage) loadLang(filesystems ...fs.FS) (err error) {
@@ -118,6 +129,10 @@ func (st *Storage) loadLang(filesystems ...fs.FS) (err error) {
 		return
 	}
 	err = st.loadLangEmail(filesystems...)
+	if err != nil {
+		return
+	}
+	err = st.loadLangTelegram(filesystems...)
 	return
 }
 
@@ -620,6 +635,83 @@ func (st *Storage) loadLangEmail(filesystems ...fs.FS) error {
 	return nil
 }
 
+func (st *Storage) loadLangTelegram(filesystems ...fs.FS) error {
+	st.lang.Telegram = map[string]telegramLang{}
+	var english telegramLang
+	loadedLangs := make([]map[string]bool, len(filesystems))
+	var load loadLangFunc
+	load = func(fsIndex int, fname string) error {
+		filesystem := filesystems[fsIndex]
+		index := strings.TrimSuffix(fname, filepath.Ext(fname))
+		lang := telegramLang{}
+		f, err := fs.ReadFile(filesystem, FSJoin(st.lang.TelegramPath, fname))
+		if err != nil {
+			return err
+		}
+		if substituteStrings != "" {
+			f = []byte(strings.ReplaceAll(string(f), "Jellyfin", substituteStrings))
+		}
+		err = json.Unmarshal(f, &lang)
+		if err != nil {
+			return err
+		}
+		st.lang.Common.patchCommon(&lang.Strings, index)
+		if fname != "en-us.json" {
+			if lang.Meta.Fallback != "" {
+				fallback, ok := st.lang.Telegram[lang.Meta.Fallback]
+				err = nil
+				if !ok {
+					err = load(fsIndex, lang.Meta.Fallback+".json")
+					fallback = st.lang.Telegram[lang.Meta.Fallback]
+				}
+				if err == nil {
+					loadedLangs[fsIndex][lang.Meta.Fallback+".json"] = true
+					patchLang(&lang.Strings, &fallback.Strings, &english.Strings)
+				}
+			}
+			if (lang.Meta.Fallback != "" && err != nil) || lang.Meta.Fallback == "" {
+				patchLang(&lang.Strings, &english.Strings)
+			}
+		}
+		st.lang.Telegram[index] = lang
+		return nil
+	}
+	engFound := false
+	var err error
+	for i := range filesystems {
+		loadedLangs[i] = map[string]bool{}
+		err = load(i, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
+		loadedLangs[i]["en-us.json"] = true
+	}
+	if !engFound {
+		return err
+	}
+	english = st.lang.Telegram["en-us"]
+	telegramLoaded := false
+	for i := range filesystems {
+		files, err := fs.ReadDir(filesystems[i], st.lang.TelegramPath)
+		if err != nil {
+			continue
+		}
+		for _, f := range files {
+			if !loadedLangs[i][f.Name()] {
+				err = load(i, f.Name())
+				if err == nil {
+					telegramLoaded = true
+					loadedLangs[i][f.Name()] = true
+				}
+			}
+		}
+	}
+	if !telegramLoaded {
+		return err
+	}
+	return nil
+}
+
 type Invites map[string]Invite
 
 func (st *Storage) loadInvites() error {
@@ -665,6 +757,14 @@ func (st *Storage) storeEmails() error {
 	return storeJSON(st.emails_path, st.emails)
 }
 
+func (st *Storage) loadTelegramUsers() error {
+	return loadJSON(st.telegram_path, &st.telegram)
+}
+
+func (st *Storage) storeTelegramUsers() error {
+	return storeJSON(st.telegram_path, st.telegram)
+}
+
 func (st *Storage) loadCustomEmails() error {
 	return loadJSON(st.customEmails_path, &st.customEmails)
 }

telegram.go

@@ -0,0 +1,220 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"strings"
+	"time"
+
+	tg "github.com/go-telegram-bot-api/telegram-bot-api"
+)
+
+type VerifiedToken struct {
+	Token    string
+	ChatID   int64
+	Username string
+}
+
+type TelegramDaemon struct {
+	Stopped         bool
+	ShutdownChannel chan string
+	bot             *tg.BotAPI
+	username        string
+	tokens          []string
+	verifiedTokens  []VerifiedToken
+	languages       map[int64]string // Store of languages for chatIDs. Added to on first interaction, and loaded from app.storage.telegram on start.
+	link            string
+	app             *appContext
+}
+
+func newTelegramDaemon(app *appContext) (*TelegramDaemon, error) {
+	token := app.config.Section("telegram").Key("token").String()
+	if token == "" {
+		return nil, fmt.Errorf("token was blank")
+	}
+	bot, err := tg.NewBotAPI(token)
+	if err != nil {
+		return nil, err
+	}
+	td := &TelegramDaemon{
+		Stopped:         false,
+		ShutdownChannel: make(chan string),
+		bot:             bot,
+		username:        bot.Self.UserName,
+		tokens:          []string{},
+		verifiedTokens:  []VerifiedToken{},
+		languages:       map[int64]string{},
+		link:            "https://t.me/" + bot.Self.UserName,
+		app:             app,
+	}
+	for _, user := range app.storage.telegram {
+		if user.Lang != "" {
+			td.languages[user.ChatID] = user.Lang
+		}
+	}
+	return td, nil
+}
+
+var runes = []rune("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
+
+// NewAuthToken generates an 8-character pin in the form "A1-2B-CD".
+func (t *TelegramDaemon) NewAuthToken() string {
+	rand.Seed(time.Now().UnixNano())
+	pin := make([]rune, 8)
+	for i := range pin {
+		if i == 2 || i == 5 {
+			pin[i] = '-'
+		} else {
+			pin[i] = runes[rand.Intn(len(runes))]
+		}
+	}
+	t.tokens = append(t.tokens, string(pin))
+	return string(pin)
+}
+
+func (t *TelegramDaemon) run() {
+	t.app.info.Println("Starting Telegram bot daemon")
+	u := tg.NewUpdate(0)
+	u.Timeout = 60
+	updates, err := t.bot.GetUpdatesChan(u)
+	if err != nil {
+		t.app.err.Printf("Failed to start Telegram daemon: %v", err)
+		return
+	}
+	for {
+		var upd tg.Update
+		select {
+		case upd = <-updates:
+			if upd.Message == nil {
+				continue
+			}
+			sects := strings.Split(upd.Message.Text, " ")
+			if len(sects) == 0 {
+				continue
+			}
+			lang := t.app.storage.lang.chosenTelegramLang
+			storedLang, ok := t.languages[upd.Message.Chat.ID]
+			if !ok {
+				found := false
+				for code := range t.app.storage.lang.Telegram {
+					if code[:2] == upd.Message.From.LanguageCode {
+						lang = code
+						found = true
+						break
+					}
+				}
+				if found {
+					t.languages[upd.Message.Chat.ID] = lang
+				}
+			} else {
+				lang = storedLang
+			}
+			switch msg := sects[0]; msg {
+			case "/start":
+				content := t.app.storage.lang.Telegram[lang].Strings.get("startMessage") + "\n"
+				content += t.app.storage.lang.Telegram[lang].Strings.get("languageMessage")
+				err := t.Reply(&upd, content)
+				if err != nil {
+					t.app.err.Printf("Telegram: Failed to send message to \"%s\": %v", upd.Message.From.UserName, err)
+				}
+				continue
+			case "/lang":
+				if len(sects) == 1 {
+					list := "/lang <lang>\n"
+					for code := range t.app.storage.lang.Telegram {
+						list += fmt.Sprintf("%s: %s\n", code, t.app.storage.lang.Telegram[code].Meta.Name)
+					}
+					err := t.Reply(&upd, list)
+					if err != nil {
+						t.app.err.Printf("Telegram: Failed to send message to \"%s\": %v", upd.Message.From.UserName, err)
+					}
+					continue
+				}
+				if _, ok := t.app.storage.lang.Telegram[sects[1]]; ok {
+					t.languages[upd.Message.Chat.ID] = sects[1]
+					for jfID, user := range t.app.storage.telegram {
+						if user.ChatID == upd.Message.Chat.ID {
+							user.Lang = sects[1]
+							t.app.storage.telegram[jfID] = user
+							err := t.app.storage.storeTelegramUsers()
+							if err != nil {
+								t.app.err.Printf("Failed to store Telegram users: %v", err)
+							}
+							break
+						}
+					}
+				}
+				continue
+			default:
+				tokenIndex := -1
+				for i, token := range t.tokens {
+					if upd.Message.Text == token {
+						tokenIndex = i
+						break
+					}
+				}
+				if tokenIndex == -1 {
+					err := t.QuoteReply(&upd, t.app.storage.lang.Telegram[lang].Strings.get("invalidPIN"))
+					if err != nil {
+						t.app.err.Printf("Telegram: Failed to send message to \"%s\": %v", upd.Message.From.UserName, err)
+					}
+					continue
+				}
+				err := t.QuoteReply(&upd, t.app.storage.lang.Telegram[lang].Strings.get("pinSuccess"))
+				if err != nil {
+					t.app.err.Printf("Telegram: Failed to send message to \"%s\": %v", upd.Message.From.UserName, err)
+				}
+				t.verifiedTokens = append(t.verifiedTokens, VerifiedToken{
+					Token:    upd.Message.Text,
+					ChatID:   upd.Message.Chat.ID,
+					Username: upd.Message.Chat.UserName,
+				})
+				t.tokens[len(t.tokens)-1], t.tokens[tokenIndex] = t.tokens[tokenIndex], t.tokens[len(t.tokens)-1]
+				t.tokens = t.tokens[:len(t.tokens)-1]
+			}
+
+		case <-t.ShutdownChannel:
+			t.bot.StopReceivingUpdates()
+			t.ShutdownChannel <- "Down"
+			return
+		}
+	}
+}
+
+func (t *TelegramDaemon) Reply(upd *tg.Update, content string) error {
+	msg := tg.NewMessage((*upd).Message.Chat.ID, content)
+	_, err := t.bot.Send(msg)
+	return err
+}
+
+func (t *TelegramDaemon) QuoteReply(upd *tg.Update, content string) error {
+	msg := tg.NewMessage((*upd).Message.Chat.ID, content)
+	msg.ReplyToMessageID = (*upd).Message.MessageID
+	_, err := t.bot.Send(msg)
+	return err
+}
+
+// Send will send a telegram message to a list of chat IDs. message.text is used if no markdown is given.
+func (t *TelegramDaemon) Send(message *Message, ID ...int64) error {
+	for _, id := range ID {
+		var msg tg.MessageConfig
+		if message.Markdown == "" {
+			msg = tg.NewMessage(id, message.Text)
+		} else {
+			msg = tg.NewMessage(id, strings.ReplaceAll(message.Markdown, ".", "\\."))
+			msg.ParseMode = "MarkdownV2"
+		}
+		_, err := t.bot.Send(msg)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (t *TelegramDaemon) Shutdown() {
+	t.Stopped = true
+	t.ShutdownChannel <- "Down"
+	<-t.ShutdownChannel
+	close(t.ShutdownChannel)
+}

ts/admin.ts

@@ -62,6 +62,10 @@ window.availableProfiles = window.availableProfiles || [];
     window.modals.extendExpiry = new Modal(document.getElementById("modal-extend-expiry"));
 
     window.modals.updateInfo = new Modal(document.getElementById("modal-update"));
+
+    if (window.telegramEnabled) {
+        window.modals.telegram = new Modal(document.getElementById("modal-telegram"));
+    }
 })();
 
 var inviteCreator = new createInvite();

ts/form.ts

@@ -1,15 +1,19 @@
 import { Modal } from "./modules/modal.js";
+import { notificationBox, whichAnimationEvent } from "./modules/common.js";
 import { _get, _post, toggleLoader, toDateString } from "./modules/common.js";
 import { loadLangSelector } from "./modules/lang.js";
 
 interface formWindow extends Window {
     validationStrings: pwValStrings;
     invalidPassword: string;
-    modal: Modal;
+    successModal: Modal;
+    telegramModal: Modal;
+    confirmationModal: Modal
     code: string;
     messages: { [key: string]: string };
     confirmation: boolean;
-    confirmationModal: Modal
+    telegramRequired: boolean;
+    telegramPIN: string;
     userExpiryEnabled: boolean;
     userExpiryMonths: number;
     userExpiryDays: number;
@@ -34,7 +38,52 @@ interface pwValStrings {
 
 loadLangSelector("form");
 
-window.modal = new Modal(document.getElementById("modal-success"), true);
+window.notifications = new notificationBox(document.getElementById("notification-box") as HTMLDivElement);
+
+window.animationEvent = whichAnimationEvent();
+
+window.successModal = new Modal(document.getElementById("modal-success"), true);
+
+var telegramVerified = false;
+if (window.telegramEnabled) {
+    window.telegramModal = new Modal(document.getElementById("modal-telegram"), window.telegramRequired);
+    const telegramButton = document.getElementById("link-telegram") as HTMLSpanElement;
+    telegramButton.onclick = () => {
+        const waiting = document.getElementById("telegram-waiting") as HTMLSpanElement;
+        toggleLoader(waiting);
+        window.telegramModal.show();
+        let modalClosed = false;
+        window.telegramModal.onclose = () => {
+            modalClosed = true;
+            toggleLoader(waiting);
+        }
+        const checkVerified = () => _get("/invite/" + window.code + "/telegram/verified/" + window.telegramPIN, null, (req: XMLHttpRequest) => {
+            if (req.readyState == 4) {
+                if (req.status == 401) {
+                    window.telegramModal.close();
+                    window.notifications.customError("invalidCodeError", window.messages["errorInvalidCode"]);
+                    return;
+                } else if (req.status == 200) {
+                    if (req.response["success"] as boolean) {
+                        telegramVerified = true;
+                        waiting.classList.add("~positive");
+                        waiting.classList.remove("~info");
+                        window.notifications.customPositive("telegramVerified", "", window.messages["telegramVerified"]); 
+                        setTimeout(window.telegramModal.close, 2000);
+                        telegramButton.classList.add("unfocused");
+                        document.getElementById("contact-via").classList.remove("unfocused");
+                        const radio = document.getElementById("contact-via-telegram") as HTMLInputElement;
+                        radio.checked = true;
+                    } else if (!modalClosed) {
+                        setTimeout(checkVerified, 1500);
+                    }
+                }
+            }
+        });
+        checkVerified();
+    };
+}
+
 if (window.confirmation) {
     window.confirmationModal = new Modal(document.getElementById("modal-confirmation"), true);
 }
@@ -110,6 +159,8 @@ interface sendDTO {
     email: string;
     username: string;
     password: string;
+    telegram_pin?: string;
+    telegram_contact?: boolean;
 }
 
 const create = (event: SubmitEvent) => {
@@ -121,6 +172,13 @@ const create = (event: SubmitEvent) => {
         email: emailField.value,
         password: passwordField.value
     };
+    if (telegramVerified) {
+        send.telegram_pin = window.telegramPIN;
+        const radio = document.getElementById("contact-via-telegram") as HTMLInputElement;
+        if (radio.checked) {
+            send.telegram_contact = true;
+        }
+    }
     _post("/newUser", send, (req: XMLHttpRequest) => {
         if (req.readyState == 4) {
             let vals = req.response as respDTO;
@@ -130,7 +188,7 @@ const create = (event: SubmitEvent) => {
                 if (!vals[type]) { valid = false; }
             }
             if (req.status == 200 && valid) {
-                window.modal.show();
+                window.successModal.show();
             } else {
                 submitSpan.classList.add("~critical");
                 submitSpan.classList.remove("~urge");

ts/modules/accounts.ts

@@ -1,4 +1,4 @@
-import { _get, _post, _delete, toggleLoader, toDateString } from "../modules/common.js";
+import { _get, _post, _delete, toggleLoader, addLoader, removeLoader, toDateString } from "../modules/common.js";
 import { templateEmail } from "../modules/settings.js";
 import { Marked } from "@ts-stack/markdown";
 import { stripMarkdown } from "../modules/stripmd.js";
@@ -11,6 +11,13 @@ interface User {
     admin: boolean;
     disabled: boolean;
     expiry: number;
+    telegram: string;
+    notify_telegram: boolean;
+}
+
+interface getPinResponse {
+    token: string;
+    username: string;
 }
 
 class user implements User {
@@ -22,6 +29,9 @@ class user implements User {
     private _email: HTMLInputElement;
     private _emailAddress: string;
     private _emailEditButton: HTMLElement;
+    private _telegram: HTMLTableDataCellElement;
+    private _telegramUsername: string;
+    private _notifyTelegram: boolean;
     private _expiry: HTMLTableDataCellElement;
     private _expiryUnix: number;
     private _lastActive: HTMLTableDataCellElement;
@@ -72,6 +82,89 @@ class user implements User {
         }
     }
     
+    get telegram(): string { return this._telegramUsername; }
+    set telegram(u: string) {
+        if (!window.telegramEnabled) return;
+        this._telegramUsername = u;
+        if (u == "") {
+            this._telegram.innerHTML = `<span class="chip btn !low">Add</span>`;
+            (this._telegram.querySelector("span") as HTMLSpanElement).onclick = this._addTelegram;
+        } else {
+            this._telegram.innerHTML = `
+            <a href="https://t.me/${u}" target="_blank">@${u}</a>
+            <i class="icon ri-settings-2-line ml-half dropdown-button"></i>
+            <div class="dropdown manual">
+                <div class="dropdown-display">
+                    <div class="card ~neutral !low">
+                        <span class="supra sm">${window.lang.strings("contactThrough")}</span>
+                        <label class="switch pb-1 mt-half">
+                            <input type="radio" name="accounts-contact-${this.id}" class="accounts-contact-email">
+                            <span>Email</span>
+                        </label>
+                        <label class="switch pb-1">
+                            <input type="radio" name="accounts-contact-${this.id}">
+                            <span>Telegram</span>
+                        </label>
+                    </div>
+                </div>
+            </div>
+            `;
+            // Javascript is necessary as including the button inside the dropdown would make it too wide to display next to the username.
+            const button = this._telegram.querySelector("i");
+            const dropdown = this._telegram.querySelector("div.dropdown") as HTMLDivElement;
+            const radios = this._telegram.querySelectorAll("input") as NodeListOf<HTMLInputElement>;
+            for (let i = 0; i < radios.length; i++) {
+                radios[i].onclick = this._setTelegramNotify;
+            }
+
+            button.onclick = () => {
+                dropdown.classList.add("selected");
+                document.addEventListener("click", outerClickListener);
+            };
+            const outerClickListener = (event: Event) => {
+                if (!(event.target instanceof HTMLElement && (this._telegram.contains(event.target) || button.contains(event.target)))) {
+                    dropdown.classList.remove("selected");
+                    document.removeEventListener("click", outerClickListener);
+                }
+            };
+        }
+    }
+    
+    get notify_telegram(): boolean { return this._notifyTelegram; }
+    set notify_telegram(s: boolean) {
+        if (!window.telegramEnabled || !this._telegramUsername) return;
+        this._notifyTelegram = s;
+        const radios = this._telegram.querySelectorAll("input") as NodeListOf<HTMLInputElement>;
+        radios[0].checked = !s;
+        radios[1].checked = s;
+    }
+
+    private _setTelegramNotify = () => {
+        const radios = this._telegram.querySelectorAll("input") as NodeListOf<HTMLInputElement>;
+        let send = {
+            id: this.id,
+            enabled: radios[1].checked
+        };
+        _post("/users/telegram/notify", send, (req: XMLHttpRequest) => {
+            if (req.readyState == 4) {
+                if (req.status != 200) {
+                    window.notifications.customError("errorSetTelegramNotify", window.lang.notif("errorSaveSettings"));
+                    radios[0].checked, radios[1].checked= radios[1].checked, radios[0].checked;
+                    return;
+                }
+            }
+        }, false, (req: XMLHttpRequest) => {
+            if (req.status == 0) {
+                window.notifications.connectionError();
+                radios[0].checked, radios[1].checked= radios[1].checked, radios[0].checked;
+                return;
+            } else if (req.status == 401) {
+                radios[0].checked, radios[1].checked= radios[1].checked, radios[0].checked;
+                window.notifications.customError("401Error", window.lang.notif("error401Unauthorized"));
+            }
+        });
+    }
+
     get expiry(): number { return this._expiryUnix; }
     set expiry(unix: number) {
         this._expiryUnix = unix;
@@ -97,13 +190,21 @@ class user implements User {
 
     constructor(user: User) {
         this._row = document.createElement("tr") as HTMLTableRowElement;
-        this._row.innerHTML = `
+        let innerHTML = `
             <td><input type="checkbox" value=""></td>
             <td><span class="accounts-username"></span> <span class="accounts-admin"></span> <span class="accounts-disabled"></span></td>
             <td><i class="icon ri-edit-line accounts-email-edit"></i><span class="accounts-email-container ml-half"></span></td>
-            <td class="accounts-expiry"></td>
-            <td class="accounts-last-active"></td>
         `;
+        if (window.telegramEnabled) {
+            innerHTML += `
+            <td class="accounts-telegram"></td>
+            `;
+        }
+        innerHTML += `
+        <td class="accounts-expiry"></td>
+        <td class="accounts-last-active"></td>
+        `;
+        this._row.innerHTML = innerHTML;
         const emailEditor = `<input type="email" class="input ~neutral !normal stealth-input">`;
         this._check = this._row.querySelector("input[type=checkbox]") as HTMLInputElement;
         this._username = this._row.querySelector(".accounts-username") as HTMLSpanElement;
@@ -111,6 +212,7 @@ class user implements User {
         this._disabled = this._row.querySelector(".accounts-disabled") as HTMLSpanElement;
         this._email = this._row.querySelector(".accounts-email-container") as HTMLInputElement;
         this._emailEditButton = this._row.querySelector(".accounts-email-edit") as HTMLElement;
+        this._telegram = this._row.querySelector(".accounts-telegram") as HTMLTableDataCellElement;
         this._expiry = this._row.querySelector(".accounts-expiry") as HTMLTableDataCellElement;
         this._lastActive = this._row.querySelector(".accounts-last-active") as HTMLTableDataCellElement;
         this._check.onchange = () => { this.selected = this._check.checked; }
@@ -169,14 +271,60 @@ class user implements User {
         });
     }
 
+    private _addTelegram = () => _get("/telegram/pin", null, (req: XMLHttpRequest) => {
+        if (req.readyState == 4 && req.status == 200) {
+            const pin = document.getElementById("telegram-pin");
+            const link = document.getElementById("telegram-link") as HTMLAnchorElement;
+            const username = document.getElementById("telegram-username") as HTMLSpanElement;
+            const waiting = document.getElementById("telegram-waiting") as HTMLSpanElement;
+            let resp = req.response as getPinResponse;
+            pin.textContent = resp.token;
+            link.href = "https://t.me/" + resp.username;
+            username.textContent = resp.username;
+            addLoader(waiting);
+            let modalClosed = false;
+            window.modals.telegram.onclose = () => { 
+                modalClosed = true;
+                removeLoader(waiting);
+            }
+            let send = {
+                token: resp.token,
+                id: this.id
+            };
+            const checkVerified = () => _post("/users/telegram", send, (req: XMLHttpRequest) => {
+                if (req.readyState == 4) {
+                    if (req.status == 200 && req.response["success"] as boolean) {
+                        removeLoader(waiting);
+                        waiting.classList.add("~positive");
+                        waiting.classList.remove("~info");
+                        window.notifications.customSuccess("telegramVerified", window.lang.notif("telegramVerified"));
+                        setTimeout(() => {
+                            window.modals.telegram.close();
+                            waiting.classList.add("~info");
+                            waiting.classList.remove("~positive");
+                        }, 2000);
+                        document.dispatchEvent(new CustomEvent("accounts-reload"));
+                    } else if (!modalClosed) {
+                        setTimeout(checkVerified, 1500);
+                    }
+                }
+            }, true);
+            window.modals.telegram.show();
+            checkVerified();
+        }
+    });
+
+
     update = (user: User) => {
         this.id = user.id;
         this.name = user.name;
         this.email = user.email || "";
+        this.telegram = user.telegram;
         this.last_active = user.last_active;
         this.admin = user.admin;
         this.disabled = user.disabled;
         this.expiry = user.expiry;
+        this.notify_telegram = user.notify_telegram;
     }
 
     asElement = (): HTMLTableRowElement => { return this._row; }
@@ -188,9 +336,6 @@ class user implements User {
     }
 }    
 
-
-
-
 export class accountsList {
     private _table = document.getElementById("accounts-list") as HTMLTableSectionElement;
     
@@ -334,7 +479,7 @@ export class accountsList {
             this._selectAll.checked = false;
             this._modifySettings.classList.add("unfocused");
             this._deleteUser.classList.add("unfocused");
-            if (window.emailEnabled) {
+            if (window.emailEnabled || window.telegramEnabled) {
                 this._announceButton.classList.add("unfocused");
             }
             this._extendExpiry.classList.add("unfocused");
@@ -356,7 +501,7 @@ export class accountsList {
             this._modifySettings.classList.remove("unfocused");
             this._deleteUser.classList.remove("unfocused");
             this._deleteUser.textContent = window.lang.quantity("deleteUser", list.length);
-            if (window.emailEnabled) {
+            if (window.emailEnabled || window.telegramEnabled) {
                 this._announceButton.classList.remove("unfocused");
             }
             let anyNonExpiries = list.length == 0 ? true : false;
@@ -701,6 +846,7 @@ export class accountsList {
         this._selectAll.onchange = () => {
             this.selectAll = this._selectAll.checked;
         };
+        document.addEventListener("accounts-reload", this.reload);
         document.addEventListener("accountCheckEvent", () => { this._checkCount++; this._checkCheckCount(); });
         document.addEventListener("accountUncheckEvent", () => { this._checkCount--; this._checkCheckCount(); });
         this._addUserButton.onclick = window.modals.addUser.toggle;

ts/modules/common.ts

@@ -179,3 +179,22 @@ export function toggleLoader(el: HTMLElement, small: boolean = true) {
         el.appendChild(dot);
     }
 }
+
+export function addLoader(el: HTMLElement, small: boolean = true) {
+    if (!el.classList.contains("loader")) {
+        el.classList.add("loader");
+        if (small) { el.classList.add("loader-sm"); }
+        const dot = document.createElement("span") as HTMLSpanElement;
+        dot.classList.add("dot")
+        el.appendChild(dot);
+    }
+}
+
+export function removeLoader(el: HTMLElement, small: boolean = true) {
+    if (el.classList.contains("loader")) {
+        el.classList.remove("loader");
+        el.classList.remove("loader-sm");
+        const dot = el.querySelector("span.dot");
+        if (dot) { dot.remove(); }
+    }
+}

ts/modules/modal.ts

@@ -3,9 +3,13 @@ declare var window: Window;
 export class Modal implements Modal {
     modal: HTMLElement;
     closeButton: HTMLSpanElement;
+    openEvent: CustomEvent;
+    closeEvent: CustomEvent;
     constructor(modal: HTMLElement, important: boolean = false) {
         this.modal = modal;
-        const closeButton = this.modal.querySelector('span.modal-close')
+        this.openEvent = new CustomEvent("modal-open-" + modal.id);
+        this.closeEvent = new CustomEvent("modal-close-" + modal.id);
+        const closeButton = this.modal.querySelector('span.modal-close');
         if (closeButton !== null) {
             this.closeButton = closeButton as HTMLSpanElement;
             this.closeButton.onclick = this.close;
@@ -22,15 +26,25 @@ export class Modal implements Modal {
         }
         this.modal.classList.add('modal-hiding');
         const modal = this.modal;
-        const listenerFunc = function () {
+        const listenerFunc = () => {
             modal.classList.remove('modal-shown');
             modal.classList.remove('modal-hiding');
             modal.removeEventListener(window.animationEvent, listenerFunc);
+            document.dispatchEvent(this.closeEvent);
         };
         this.modal.addEventListener(window.animationEvent, listenerFunc, false);
     }
+
+    set onopen(f: () => void) {
+        document.addEventListener("modal-open-"+this.modal.id, f);
+    }
+    set onclose(f: () => void) {
+        document.addEventListener("modal-close-"+this.modal.id, f);
+    }
+
     show = () => {
         this.modal.classList.add('modal-shown');
+        document.dispatchEvent(this.openEvent);
     }
     toggle = () => {
         if (this.modal.classList.contains('modal-shown')) {

ts/modules/settings.ts

@@ -560,8 +560,16 @@ export class settingsList {
             document.addEventListener(`settings-${dependant[0]}-${dependant[1]}`, (event: settingsBoolEvent) => {
                 if (Boolean(event.detail) !== state) {
                     button.classList.add("unfocused");
+                    document.dispatchEvent(new CustomEvent(`settings-${name}`, { detail: false }));
                 } else {
                     button.classList.remove("unfocused");
+                    document.dispatchEvent(new CustomEvent(`settings-${name}`, { detail: true }));
+                }
+            });
+            document.addEventListener(`settings-${dependant[0]}`, (event: settingsBoolEvent) => {
+                if (Boolean(event.detail) !== state) {
+                    button.classList.add("unfocused");
+                    document.dispatchEvent(new CustomEvent(`settings-${name}`, { detail: false }));
                 }
             }); 
         }
@@ -669,7 +677,7 @@ export class settingsList {
                 if (name in this._sections) {
                     this._sections[name].update(settings.sections[name]);
                 } else {
-                    if (name == "email") {
+                    if (name == "messages") {
                         const editButton = document.createElement("div");
                         editButton.classList.add("tooltip", "left");
                         editButton.innerHTML = `
@@ -677,7 +685,7 @@ export class settingsList {
                             <i class="icon ri-edit-line"></i>
                         </span>
                         <span class="content sm">
-                        ${window.lang.get("strings", "customizeEmails")}
+                        ${window.lang.get("strings", "customizeMessages")}
                         </span>
                         `;
                         (editButton.querySelector("span.button") as HTMLSpanElement).onclick = this._emailEditor.showList;

ts/typings/d.ts

@@ -4,6 +4,8 @@ declare interface Modal {
     show: () => void;
     close: (event?: Event) => void;
     toggle: () => void;
+    onopen: (f: () => void) => void;
+    onclose: (f: () => void) => void;
 }
 
 interface ArrayConstructor {
@@ -18,6 +20,7 @@ declare interface Window {
     jfUsers: Array<Object>;
     notificationsEnabled: boolean;
     emailEnabled: boolean;
+    telegramEnabled: boolean;
     ombiEnabled: boolean;
     usernameEnabled: boolean;
     token: string;
@@ -97,6 +100,7 @@ declare interface Modals {
     customizeEmails: Modal;
     extendExpiry: Modal;
     updateInfo: Modal;
+    telegram: Modal;
 }
 
 interface Invite {

userdaemon.go

@@ -71,9 +71,9 @@ func (app *appContext) checkUsers() {
 		mode = "delete"
 		termPlural = "Deleting"
 	}
-	email := false
+	contact := false
-	if emailEnabled && app.config.Section("user_expiry").Key("send_email").MustBool(true) {
+	if messagesEnabled && app.config.Section("user_expiry").Key("send_email").MustBool(true) {
-		email = true
+		contact = true
 	}
 	// Use a map to speed up checking for deleted users later
 	userExists := map[string]bool{}
@@ -114,18 +114,18 @@ func (app *appContext) checkUsers() {
 			}
 			delete(app.storage.users, id)
 			app.jf.CacheExpiry = time.Now()
-			if email {
+			if contact {
-				address, ok := app.storage.emails[id]
 				if !ok {
 					continue
 				}
+				name := app.getAddressOrName(user.ID)
 				msg, err := app.email.constructUserExpired(app, false)
 				if err != nil {
-					app.err.Printf("Failed to construct expiry email for \"%s\": %s", user.Name, err)
+					app.err.Printf("Failed to construct expiry message for \"%s\": %s", user.Name, err)
-				} else if err := app.email.send(msg, address.(string)); err != nil {
+				} else if err := app.sendByID(msg, user.ID); err != nil {
-					app.err.Printf("Failed to send expiry email to \"%s\": %s", user.Name, err)
+					app.err.Printf("Failed to send expiry message to \"%s\": %s", name, err)
 				} else {
-					app.info.Printf("Sent expiry notification to \"%s\"", address.(string))
+					app.info.Printf("Sent expiry notification to \"%s\"", name)
 				}
 			}
 		}

views.go

@@ -116,20 +116,21 @@ func (app *appContext) AdminPage(gc *gin.Context) {
 	}
 	license = string(l)
 	gcHTML(gc, http.StatusOK, "admin.html", gin.H{
-		"urlBase":         app.getURLBase(gc),
+		"urlBase":          app.getURLBase(gc),
-		"cssClass":        app.cssClass,
+		"cssClass":         app.cssClass,
-		"contactMessage":  "",
+		"contactMessage":   "",
-		"email_enabled":   emailEnabled,
+		"email_enabled":    emailEnabled,
-		"notifications":   notificationsEnabled,
+		"telegram_enabled": telegramEnabled,
-		"version":         version,
+		"notifications":    notificationsEnabled,
-		"commit":          commit,
+		"version":          version,
-		"ombiEnabled":     ombiEnabled,
+		"commit":           commit,
-		"username":        !app.config.Section("email").Key("no_username").MustBool(false),
+		"ombiEnabled":      ombiEnabled,
-		"strings":         app.storage.lang.Admin[lang].Strings,
+		"username":         !app.config.Section("email").Key("no_username").MustBool(false),
-		"quantityStrings": app.storage.lang.Admin[lang].QuantityStrings,
+		"strings":          app.storage.lang.Admin[lang].Strings,
-		"language":        app.storage.lang.Admin[lang].JSON,
+		"quantityStrings":  app.storage.lang.Admin[lang].QuantityStrings,
-		"langName":        lang,
+		"language":         app.storage.lang.Admin[lang].JSON,
-		"license":         license,
+		"langName":         lang,
+		"license":          license,
 	})
 }
 
@@ -259,7 +260,7 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 	if strings.Contains(email, "Failed") {
 		email = ""
 	}
-	gcHTML(gc, http.StatusOK, "form-loader.html", gin.H{
+	data := gin.H{
 		"urlBase":           app.getURLBase(gc),
 		"cssClass":          app.cssClass,
 		"contactMessage":    app.config.Section("ui").Key("contact_message").String(),
@@ -282,7 +283,15 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 		"userExpiryMinutes": inv.UserMinutes,
 		"userExpiryMessage": app.storage.lang.Form[lang].Strings.get("yourAccountIsValidUntil"),
 		"langName":          lang,
-	})
+		"telegramEnabled":   telegramEnabled,
+	}
+	if data["telegramEnabled"].(bool) {
+		data["telegramPIN"] = app.telegram.NewAuthToken()
+		data["telegramUsername"] = app.telegram.username
+		data["telegramURL"] = app.telegram.link
+		data["telegramRequired"] = app.config.Section("telegram").Key("required").MustBool(false)
+	}
+	gcHTML(gc, http.StatusOK, "form-loader.html", data)
 }
 
 func (app *appContext) NoRouteHandler(gc *gin.Context) {