SendMessage()

server/api/handler/api.go

@@ -2,9 +2,10 @@ package handler
 
 import (
 	"blackforestbytes.com/simplecloudnotifier/api/apierr"
-	"blackforestbytes.com/simplecloudnotifier/api/models"
 	"blackforestbytes.com/simplecloudnotifier/common/ginresp"
+	"blackforestbytes.com/simplecloudnotifier/db"
 	"blackforestbytes.com/simplecloudnotifier/logic"
+	"blackforestbytes.com/simplecloudnotifier/models"
 	"database/sql"
 	"github.com/gin-gonic/gin"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
@@ -14,6 +15,14 @@ import (
 
 type APIHandler struct {
 	app      *logic.Application
+	database *db.Database
+}
+
+func NewAPIHandler(app *logic.Application) APIHandler {
+	return APIHandler{
+		app:      app,
+		database: app.Database,
+	}
 }
 
 // CreateUser swaggerdoc
@@ -69,24 +78,24 @@ func (h APIHandler) CreateUser(g *gin.Context) ginresp.HTTPResponse {
 	sendKey := h.app.GenerateRandomAuthKey()
 	adminKey := h.app.GenerateRandomAuthKey()
 
-	err := h.app.Database.ClearFCMTokens(ctx, b.FCMToken)
+	err := h.database.ClearFCMTokens(ctx, b.FCMToken)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to clear existing fcm tokens", err)
 	}
 
 	if b.ProToken != nil {
-		err := h.app.Database.ClearProTokens(ctx, *b.ProToken)
+		err := h.database.ClearProTokens(ctx, *b.ProToken)
 		if err != nil {
 			return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to clear existing fcm tokens", err)
 		}
 	}
 
-	userobj, err := h.app.Database.CreateUser(ctx, readKey, sendKey, adminKey, b.ProToken, b.Username)
+	userobj, err := h.database.CreateUser(ctx, readKey, sendKey, adminKey, b.ProToken, b.Username)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to create user in db", err)
 	}
 
-	_, err = h.app.Database.CreateClient(ctx, userobj.UserID, clientType, b.FCMToken, b.AgentModel, b.AgentVersion)
+	_, err = h.database.CreateClient(ctx, userobj.UserID, clientType, b.FCMToken, b.AgentModel, b.AgentVersion)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to create user in db", err)
 	}
@@ -124,7 +133,7 @@ func (h APIHandler) GetUser(g *gin.Context) ginresp.HTTPResponse {
 		return *permResp
 	}
 
-	user, err := h.app.Database.GetUser(ctx, u.UserID)
+	user, err := h.database.GetUser(ctx, u.UserID)
 	if err == sql.ErrNoRows {
 		return ginresp.InternAPIError(404, apierr.USER_NOT_FOUND, "User not found", err)
 	}
@@ -177,7 +186,7 @@ func (h APIHandler) UpdateUser(g *gin.Context) ginresp.HTTPResponse {
 			username = nil
 		}
 
-		err := h.app.Database.UpdateUserUsername(ctx, u.UserID, b.Username)
+		err := h.database.UpdateUserUsername(ctx, u.UserID, b.Username)
 		if err != nil {
 			return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to update user", err)
 		}
@@ -193,18 +202,18 @@ func (h APIHandler) UpdateUser(g *gin.Context) ginresp.HTTPResponse {
 			return ginresp.InternAPIError(400, apierr.INVALID_PRO_TOKEN, "Purchase token could not be verified", nil)
 		}
 
-		err = h.app.Database.ClearProTokens(ctx, *b.ProToken)
+		err = h.database.ClearProTokens(ctx, *b.ProToken)
 		if err != nil {
 			return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to clear existing fcm tokens", err)
 		}
 
-		err = h.app.Database.UpdateUserProToken(ctx, u.UserID, b.ProToken)
+		err = h.database.UpdateUserProToken(ctx, u.UserID, b.ProToken)
 		if err != nil {
 			return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to update user", err)
 		}
 	}
 
-	user, err := h.app.Database.GetUser(ctx, u.UserID)
+	user, err := h.database.GetUser(ctx, u.UserID)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to query (updated) user", err)
 	}
@@ -245,7 +254,7 @@ func (h APIHandler) ListClients(g *gin.Context) ginresp.HTTPResponse {
 		return *permResp
 	}
 
-	clients, err := h.app.Database.ListClients(ctx, u.UserID)
+	clients, err := h.database.ListClients(ctx, u.UserID)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to query clients", err)
 	}
@@ -287,7 +296,7 @@ func (h APIHandler) GetClient(g *gin.Context) ginresp.HTTPResponse {
 		return *permResp
 	}
 
-	client, err := h.app.Database.GetClient(ctx, u.UserID, u.ClientID)
+	client, err := h.database.GetClient(ctx, u.UserID, u.ClientID)
 	if err == sql.ErrNoRows {
 		return ginresp.InternAPIError(404, apierr.CLIENT_NOT_FOUND, "Client not found", err)
 	}
@@ -346,7 +355,7 @@ func (h APIHandler) AddClient(g *gin.Context) ginresp.HTTPResponse {
 		return *permResp
 	}
 
-	client, err := h.app.Database.CreateClient(ctx, u.UserID, clientType, b.FCMToken, b.AgentModel, b.AgentVersion)
+	client, err := h.database.CreateClient(ctx, u.UserID, clientType, b.FCMToken, b.AgentModel, b.AgentVersion)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to create user in db", err)
 	}
@@ -386,7 +395,7 @@ func (h APIHandler) DeleteClient(g *gin.Context) ginresp.HTTPResponse {
 		return *permResp
 	}
 
-	client, err := h.app.Database.GetClient(ctx, u.UserID, u.ClientID)
+	client, err := h.database.GetClient(ctx, u.UserID, u.ClientID)
 	if err == sql.ErrNoRows {
 		return ginresp.InternAPIError(404, apierr.CLIENT_NOT_FOUND, "Client not found", err)
 	}
@@ -394,7 +403,7 @@ func (h APIHandler) DeleteClient(g *gin.Context) ginresp.HTTPResponse {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to query client", err)
 	}
 
-	err = h.app.Database.DeleteClient(ctx, u.ClientID)
+	err = h.database.DeleteClient(ctx, u.ClientID)
 	if err != nil {
 		return ginresp.InternAPIError(500, apierr.DATABASE_ERROR, "Failed to delete client", err)
 	}
@@ -446,8 +455,6 @@ func (h APIHandler) DeleteMessage(g *gin.Context) ginresp.HTTPResponse {
 	return ginresp.NotImplemented()
 }
 
-func NewAPIHandler(app *logic.Application) APIHandler {
+func (h APIHandler) SendMessage(g *gin.Context) ginresp.HTTPResponse {
-	return APIHandler{
+	return ginresp.NotImplemented()
-		app: app,
-	}
 }

server/api/handler/compat.go

@@ -1,9 +1,9 @@
 package handler
 
 import (
-	"blackforestbytes.com/simplecloudnotifier/api/models"
 	"blackforestbytes.com/simplecloudnotifier/common/ginresp"
 	"blackforestbytes.com/simplecloudnotifier/logic"
+	"blackforestbytes.com/simplecloudnotifier/models"
 	"github.com/gin-gonic/gin"
 )
 

server/api/handler/message.go

@@ -1,21 +1,232 @@
 package handler
 
 import (
+	"blackforestbytes.com/simplecloudnotifier/api/apierr"
 	"blackforestbytes.com/simplecloudnotifier/common/ginresp"
+	"blackforestbytes.com/simplecloudnotifier/db"
 	"blackforestbytes.com/simplecloudnotifier/logic"
+	"blackforestbytes.com/simplecloudnotifier/models"
+	"database/sql"
+	"fmt"
 	"github.com/gin-gonic/gin"
+	"gogs.mikescher.com/BlackForestBytes/goext/dataext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/mathext"
+	"gogs.mikescher.com/BlackForestBytes/goext/timeext"
+	"net/http"
+	"strings"
+	"time"
 )
 
 type MessageHandler struct {
 	app      *logic.Application
-}
+	database *db.Database
-
-func (h MessageHandler) SendMessage(g *gin.Context) ginresp.HTTPResponse {
-	return ginresp.NotImplemented()
 }
 
 func NewMessageHandler(app *logic.Application) MessageHandler {
 	return MessageHandler{
 		app:      app,
+		database: app.Database,
+	}
+}
+
+// SendMessage swaggerdoc
+//
+// @Summary     Send a new message
+// @Description All parameter can be set via query-parameter or the json body. Only UserID, UserKey and Title are required
+//
+// @Param       query_data query    handler.SendMessage.query false " "
+// @Param       post_body  body     handler.SendMessage.body  false " "
+//
+// @Success     200        {object} handler.SendMessage.response
+// @Failure     400        {object} ginresp.apiError
+// @Failure     401        {object} ginresp.apiError
+// @Failure     403        {object} ginresp.apiError
+// @Failure     404        {object} ginresp.apiError
+// @Failure     500        {object} ginresp.apiError
+//
+// @Router      /     [POST]
+// @Router      /send [POST]
+func (h MessageHandler) SendMessage(g *gin.Context) ginresp.HTTPResponse {
+	type query struct {
+		UserID        *int64   `form:"user_id"`
+		UserKey       *string  `form:"user_key"`
+		Channel       *string  `form:"channel"`
+		ChanKey       *string  `form:"chan_key"`
+		Title         *string  `form:"message_title"`
+		Content       *string  `form:"message_content"`
+		Priority      *int     `form:"priority"`
+		UserMessageID *string  `form:"msg_id"`
+		SendTimestamp *float64 `form:"timestamp"`
+	}
+	type body struct {
+		UserID        *int64   `json:"user_id"`
+		UserKey       *string  `json:"user_key"`
+		Channel       *string  `json:"channel"`
+		ChanKey       *string  `form:"chan_key"`
+		Title         *string  `json:"message_title"`
+		Content       *string  `json:"message_content"`
+		Priority      *int     `json:"priority"`
+		UserMessageID *string  `json:"msg_id"`
+		SendTimestamp *float64 `json:"timestamp"`
+	}
+	type response struct {
+		Success        bool            `json:"success"`
+		ErrorID        apierr.APIError `json:"error"`
+		ErrorHighlight int             `json:"errhighlight"`
+		Message        string          `json:"message"`
+		SuppressSend   bool            `json:"suppress_send"`
+		Response       string          `json:"response"`
+		MessageCount   int             `json:"messagecount"`
+		Quota          int             `json:"quota"`
+		IsPro          bool            `json:"is_pro"`
+		QuotaMax       int             `json:"quota_max"`
+		SCNMessageID   int64           `json:"scn_msg_id"`
+	}
+
+	var b body
+	var q query
+	ctx, errResp := h.app.StartRequest(g, nil, &q, &b)
+	if errResp != nil {
+		return *errResp
+	}
+	defer ctx.Cancel()
+
+	data := dataext.ObjectMerge(b, q)
+
+	if data.UserID == nil {
+		return ginresp.SendAPIError(400, apierr.MISSING_UID, 101, "Missing parameter [[user_id]]")
+	}
+	if data.UserKey == nil {
+		return ginresp.SendAPIError(400, apierr.MISSING_UID, 102, "Missing parameter [[user_token]]")
+	}
+	if data.Title == nil {
+		return ginresp.SendAPIError(400, apierr.MISSING_UID, 103, "Missing parameter [[title]]")
+	}
+	if data.SendTimestamp != nil && mathext.Abs(*data.SendTimestamp-float64(time.Now().Unix())) > (24*time.Hour).Seconds() {
+		return ginresp.SendAPIError(400, apierr.TIMESTAMP_OUT_OF_RANGE, -1, "The timestamp mus be within 24 hours of now()")
+	}
+	if data.Priority != nil && (*data.Priority != 0 && *data.Priority != 1 && *data.Priority != 2) {
+		return ginresp.SendAPIError(400, apierr.INVALID_PRIO, 105, "Invalid priority")
+	}
+	if len(strings.TrimSpace(*data.Title)) == 0 {
+		return ginresp.SendAPIError(400, apierr.NO_TITLE, 103, "No title specified")
+	}
+	if data.UserMessageID != nil && len(strings.TrimSpace(*data.UserMessageID)) > 64 {
+		return ginresp.SendAPIError(400, apierr.USR_MSG_ID_TOO_LONG, -1, "MessageID too long (64 characters)")
+	}
+
+	channelName := "main"
+	if data.Channel != nil {
+		channelName = strings.ToLower(strings.TrimSpace(*data.Channel))
+	}
+
+	user, err := h.database.GetUser(ctx, *data.UserID)
+	if err == sql.ErrNoRows {
+		return ginresp.SendAPIError(400, apierr.USER_NOT_FOUND, -1, "User not found")
+	}
+	if err != nil {
+		return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to query user")
+	}
+
+	if len(strings.TrimSpace(*data.Title)) > 120 {
+		return ginresp.SendAPIError(400, apierr.TITLE_TOO_LONG, 103, "Title too long (120 characters)")
+	}
+	if data.Content != nil && len(strings.TrimSpace(*data.Content)) > user.MaxContentLength() {
+		return ginresp.SendAPIError(400, apierr.CONTENT_TOO_LONG, 104, fmt.Sprintf("Content too long (%d characters; max := %d characters)", len(strings.TrimSpace(*data.Content)), user.MaxContentLength()))
+	}
+
+	if data.UserMessageID != nil {
+		msg, err := h.database.GetMessageByUserMessageID(ctx, *data.UserMessageID)
+		if err != nil {
+			return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to query existing message")
+		}
+		if msg != nil {
+			return ginresp.JSON(http.StatusOK, response{
+				Success:        true,
+				ErrorID:        apierr.NO_ERROR,
+				ErrorHighlight: 0,
+				Message:        "Message already sent",
+				SuppressSend:   true,
+				Response:       "",
+				MessageCount:   user.MessagesSent,
+				Quota:          user.QuotaUsedToday(),
+				IsPro:          user.IsPro,
+				QuotaMax:       user.QuotaPerDay(),
+				SCNMessageID:   msg.SCNMessageID,
+			})
+		}
+	}
+
+	if user.QuotaRemainingToday() <= 0 {
+		return ginresp.SendAPIError(403, apierr.QUOTA_REACHED, -1, fmt.Sprintf("Daily quota reached (%d)", user.QuotaPerDay()))
+	}
+
+	channel, err := h.app.GetOrCreateChannel(ctx, *data.UserID, channelName)
+	if err != nil {
+		return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to query/create channel")
+	}
+
+	selfChanAdmin := *data.UserID == channel.OwnerUserID && *data.UserKey == user.AdminKey
+	selfChanSend := *data.UserID == channel.OwnerUserID && *data.UserKey == user.SendKey
+	forgChanSend := *data.UserID != channel.OwnerUserID && data.ChanKey != nil && *data.ChanKey == channel.SendKey
+
+	if !selfChanAdmin && !selfChanSend && !forgChanSend {
+		return ginresp.SendAPIError(401, apierr.USER_AUTH_FAILED, 102, fmt.Sprintf("Daily quota reached (%d)", user.QuotaPerDay()))
+	}
+
+	var sendTimestamp *time.Time = nil
+	if data.SendTimestamp != nil {
+		sendTimestamp = langext.Ptr(timeext.UnixFloatSeconds(*data.SendTimestamp))
+	}
+
+	priority := langext.Coalesce(data.Priority, 1)
+
+	msg, err := h.database.CreateMessage(ctx, *data.UserID, channel, sendTimestamp, *data.Title, data.Content, priority, data.UserMessageID)
+	if err != nil {
+		return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to create message in db")
+	}
+
+	subscriptions, err := h.database.ListChannelSubscriptions(ctx, channel.ChannelID)
+	if err != nil {
+		return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to query subscriptions")
+	}
+
+	for _, sub := range subscriptions {
+		clients, err := h.database.ListClients(ctx, sub.SubscriberUserID)
+		if err != nil {
+			return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to query clients")
+		}
+
+		for _, client := range clients {
+
+			fcmDelivID, err := h.deliverMessage(ctx, client, msg)
+			if err != nil {
+				_, err = h.database.CreateRetryDelivery(ctx, client, msg)
+				if err != nil {
+					return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to create delivery")
+				}
+			} else {
+				_, err = h.database.CreateSuccessDelivery(ctx, client, msg, *fcmDelivID)
+				if err != nil {
+					return ginresp.SendAPIError(500, apierr.DATABASE_ERROR, -1, "Failed to create delivery")
+				}
+			}
+
+		}
+	}
+
+	return ginresp.NotImplemented()
+}
+
+func (h MessageHandler) deliverMessage(ctx *logic.AppContext, client models.Client, msg models.Message) (*string, error) {
+	if client.FCMToken != nil {
+		fcmDelivID, err := h.app.Firebase.SendNotification(ctx, client, msg)
+		if err != nil {
+			return nil, err
+		}
+		return langext.Ptr(fcmDelivID), nil
+	} else {
+		return langext.Ptr(""), nil
 	}
 }

server/api/router.go

@@ -117,7 +117,7 @@ func (r *Router) Init(e *gin.Engine) {
 		apiv2.GET("/messages/:mid", ginresp.Wrap(r.apiHandler.GetMessage))
 		apiv2.DELETE("/messages/:mid", ginresp.Wrap(r.apiHandler.DeleteMessage))
 
-		apiv2.POST("/messages", ginresp.Wrap(r.messageHandler.SendMessage))
+		apiv2.POST("/messages", ginresp.Wrap(r.apiHandler.SendMessage))
 	}
 
 	// ================ Send API ================
@@ -126,7 +126,7 @@ func (r *Router) Init(e *gin.Engine) {
 	{
 		sendAPI.POST("/", ginresp.Wrap(r.messageHandler.SendMessage))
 		sendAPI.POST("/send", ginresp.Wrap(r.messageHandler.SendMessage))
-		sendAPI.POST("/send.php")
+		sendAPI.POST("/send.php", ginresp.Wrap(r.messageHandler.SendMessage))
 	}
 
 	if r.app.Config.ReturnRawErrors {

server/common/ginresp/resp.go

@@ -85,8 +85,8 @@ func InternAPIError(status int, errorid apierr.APIError, msg string, e error) HT
 	}
 }
 
-func SendAPIError(errorid apierr.APIError, highlight int, msg string) HTTPResponse {
+func SendAPIError(status int, errorid apierr.APIError, highlight int, msg string) HTTPResponse {
-	return &errHTTPResponse{statusCode: http.StatusInternalServerError, data: apiError{Success: false, Error: int(errorid), ErrorHighlight: highlight, Message: msg}}
+	return &errHTTPResponse{statusCode: status, data: apiError{Success: false, Error: int(errorid), ErrorHighlight: highlight, Message: msg}}
 }
 
 func NotImplemented() HTTPResponse {

server/db/methods.go

@@ -1,7 +1,7 @@
 package db
 
 import (
-	"blackforestbytes.com/simplecloudnotifier/api/models"
+	"blackforestbytes.com/simplecloudnotifier/models"
 	"database/sql"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"time"
@@ -42,8 +42,8 @@ func (db *Database) CreateUser(ctx TxContext, readKey string, sendKey string, ad
 		TimestampLastRead: nil,
 		TimestampLastSent: nil,
 		MessagesSent:      0,
-		QuotaToday:        0,
+		QuotaUsed:         0,
-		QuotaDay:          nil,
+		QuotaUsedDay:      nil,
 		IsPro:             protoken != nil,
 		ProToken:          protoken,
 	}, nil
@@ -254,3 +254,261 @@ func (db *Database) DeleteClient(ctx TxContext, clientid int64) error {
 
 	return nil
 }
+
+func (db *Database) GetMessageByUserMessageID(ctx TxContext, usrMsgId string) (*models.Message, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return nil, err
+	}
+
+	rows, err := tx.QueryContext(ctx, "SELECT * FROM messages WHERE usr_message_id = ? LIMIT 1", usrMsgId)
+	if err != nil {
+		return nil, err
+	}
+
+	msg, err := models.DecodeMessage(rows)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return &msg, nil
+}
+
+func (db *Database) GetChannelByName(ctx TxContext, userid int64, chanName string) (*models.Channel, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return nil, err
+	}
+
+	rows, err := tx.QueryContext(ctx, "SELECT * FROM channels WHERE owner_user_id = ? OR name = ? LIMIT 1", userid, chanName)
+	if err != nil {
+		return nil, err
+	}
+
+	channel, err := models.DecodeChannel(rows)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return &channel, nil
+}
+
+func (db *Database) CreateChannel(ctx TxContext, userid int64, name string, subscribeKey string, sendKey string) (models.Channel, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	now := time.Now().UTC()
+
+	res, err := tx.ExecContext(ctx, "INSERT INTO channels (owner_user_id, name, subscribe_key, send_key, timestamp_created) VALUES (?, ?, ?, ?, ?)",
+		userid,
+		name,
+		subscribeKey,
+		sendKey,
+		time2DB(now))
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	liid, err := res.LastInsertId()
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	return models.Channel{
+		ChannelID:         liid,
+		OwnerUserID:       userid,
+		Name:              name,
+		SubscribeKey:      subscribeKey,
+		SendKey:           sendKey,
+		TimestampCreated:  now,
+		TimestampLastRead: nil,
+		TimestampLastSent: nil,
+		MessagesSent:      0,
+	}, nil
+}
+
+func (db *Database) CreateSubscribtion(ctx TxContext, subscriberUID int64, ownerUID int64, chanName string, chanID int64, confirmed bool) (models.Subscription, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return models.Subscription{}, err
+	}
+
+	now := time.Now().UTC()
+
+	res, err := tx.ExecContext(ctx, "INSERT INTO subscriptions (subscriber_user_id, channel_owner_user_id, channel_name, channel_id, timestamp_created, confirmed) VALUES (?, ?, ?, ?, ?, ?)",
+		subscriberUID,
+		ownerUID,
+		chanName,
+		chanID,
+		time2DB(now),
+		confirmed)
+	if err != nil {
+		return models.Subscription{}, err
+	}
+
+	liid, err := res.LastInsertId()
+	if err != nil {
+		return models.Subscription{}, err
+	}
+
+	return models.Subscription{
+		SubscriptionID:     liid,
+		SubscriberUserID:   subscriberUID,
+		ChannelOwnerUserID: ownerUID,
+		ChannelID:          chanID,
+		ChannelName:        chanName,
+		TimestampCreated:   now,
+		Confirmed:          confirmed,
+	}, nil
+}
+
+func (db *Database) CreateMessage(ctx TxContext, senderUserID int64, channel models.Channel, timestampSend *time.Time, title string, content *string, priority int, userMsgId *string) (models.Message, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return models.Message{}, err
+	}
+
+	now := time.Now().UTC()
+
+	res, err := tx.ExecContext(ctx, "INSERT INTO messages (sender_user_id, owner_user_id, channel_name, channel_id, timestamp_real, timestamp_client, title, content, priority, usr_message_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
+		senderUserID,
+		channel.OwnerUserID,
+		channel.Name,
+		channel.ChannelID,
+		time2DB(now),
+		time2DBOpt(timestampSend),
+		title,
+		content,
+		priority,
+		userMsgId)
+	if err != nil {
+		return models.Message{}, err
+	}
+
+	liid, err := res.LastInsertId()
+	if err != nil {
+		return models.Message{}, err
+	}
+
+	return models.Message{
+		SCNMessageID:    liid,
+		SenderUserID:    senderUserID,
+		OwnerUserID:     channel.OwnerUserID,
+		ChannelName:     channel.Name,
+		ChannelID:       channel.ChannelID,
+		TimestampReal:   now,
+		TimestampClient: timestampSend,
+		Title:           title,
+		Content:         content,
+		Priority:        priority,
+		UserMessageID:   userMsgId,
+	}, nil
+}
+
+func (db *Database) ListChannelSubscriptions(ctx TxContext, channelID int64) ([]models.Subscription, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return nil, err
+	}
+
+	rows, err := tx.QueryContext(ctx, "SELECT * FROM subscriptions WHERE channel_id = ?", channelID)
+	if err != nil {
+		return nil, err
+	}
+
+	data, err := models.DecodeSubscriptions(rows)
+	if err != nil {
+		return nil, err
+	}
+
+	return data, nil
+}
+
+func (db *Database) CreateRetryDelivery(ctx TxContext, client models.Client, msg models.Message) (models.Delivery, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	now := time.Now().UTC()
+	next := now.Add(5 * time.Second)
+
+	res, err := tx.ExecContext(ctx, "INSERT INTO deliveries (scn_message_id, receiver_user_id, receiver_client_id, timestamp_created, timestamp_finalized, status, fcm_message_id, next_delivery) VALUES (?, ?, ?, ?, ?, ?, ?)",
+		msg.SCNMessageID,
+		client.UserID,
+		client.ClientID,
+		time2DB(now),
+		nil,
+		models.DeliveryStatusRetry,
+		nil,
+		time2DB(next))
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	liid, err := res.LastInsertId()
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	return models.Delivery{
+		DeliveryID:         liid,
+		SCNMessageID:       msg.SCNMessageID,
+		ReceiverUserID:     client.UserID,
+		ReceiverClientID:   client.ClientID,
+		TimestampCreated:   now,
+		TimestampFinalized: nil,
+		Status:             models.DeliveryStatusRetry,
+		RetryCount:         0,
+		NextDelivery:       langext.Ptr(next),
+		FCMMessageID:       nil,
+	}, nil
+}
+
+func (db *Database) CreateSuccessDelivery(ctx TxContext, client models.Client, msg models.Message, fcmDelivID string) (models.Delivery, error) {
+	tx, err := ctx.GetOrCreateTransaction(db)
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	now := time.Now().UTC()
+
+	res, err := tx.ExecContext(ctx, "INSERT INTO deliveries (scn_message_id, receiver_user_id, receiver_client_id, timestamp_created, timestamp_finalized, status, fcm_message_id, next_delivery) VALUES (?, ?, ?, ?, ?, ?, ?)",
+		msg.SCNMessageID,
+		client.UserID,
+		client.ClientID,
+		time2DB(now),
+		time2DB(now),
+		models.DeliveryStatusSuccess,
+		fcmDelivID,
+		nil)
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	liid, err := res.LastInsertId()
+	if err != nil {
+		return models.Delivery{}, err
+	}
+
+	return models.Delivery{
+		DeliveryID:         liid,
+		SCNMessageID:       msg.SCNMessageID,
+		ReceiverUserID:     client.UserID,
+		ReceiverClientID:   client.ClientID,
+		TimestampCreated:   now,
+		TimestampFinalized: langext.Ptr(now),
+		Status:             models.DeliveryStatusSuccess,
+		RetryCount:         0,
+		NextDelivery:       nil,
+		FCMMessageID:       langext.Ptr(fcmDelivID),
+	}, nil
+}

server/db/schema_3.ddl

@@ -14,8 +14,8 @@ CREATE TABLE users
 
     messages_sent      INTEGER                             NOT NULL   DEFAULT '0',
 
-    quota_today        INTEGER                             NOT NULL   DEFAULT '0',
+    quota_used         INTEGER                             NOT NULL   DEFAULT '0',
-    quota_day          TEXT                                    NULL   DEFAULT NULL,
+    quota_used_day     TEXT                                    NULL   DEFAULT NULL,
 
     is_pro             INTEGER   CHECK(is_pro IN (0, 1))   NOT NULL   DEFAULT 0,
     pro_token          TEXT                                    NULL   DEFAULT NULL
@@ -66,8 +66,11 @@ CREATE TABLE subscriptions
     subscriber_user_id     INTEGER                                NOT NULL,
     channel_owner_user_id  INTEGER                                NOT NULL,
     channel_name           TEXT                                   NOT NULL,
+    channel_id             INTEGER                                NOT NULL,
 
-    confirmed              INTEGER   CHECK(confirmed IN (0, 1))   NOT NULL   DEFAULT 0
+    timestamp_created      INTEGER                                NOT NULL,
+
+    confirmed              INTEGER   CHECK(confirmed IN (0, 1))   NOT NULL
 );
 CREATE UNIQUE INDEX "idx_subscriptions_ref" ON subscriptions (subscriber_user_id, channel_owner_user_id, channel_name);
 
@@ -76,8 +79,8 @@ CREATE TABLE messages
 (
     scn_message_id     INTEGER                                  PRIMARY KEY AUTOINCREMENT,
     sender_user_id     INTEGER                                  NOT NULL,
+    owner_user_id      INTEGER                                  NOT NULL,
     channel_name       TEXT                                     NOT NULL,
-
     channel_id         INTEGER                                  NOT NULL,
 
     timestamp_real     INTEGER                                  NOT NULL,
@@ -88,8 +91,8 @@ CREATE TABLE messages
     priority           INTEGER  CHECK(priority IN (0, 1, 2))    NOT NULL,
     usr_message_id     TEXT                                         NULL
 );
-CREATE INDEX "idx_messages_channel"     ON messages (sender_user_id, channel_name);
+CREATE INDEX "idx_messages_channel"     ON messages (owner_user_id, channel_name);
-CREATE INDEX "idx_messages_idempotency" ON messages (sender_user_id, usr_message_id);
+CREATE INDEX "idx_messages_idempotency" ON messages (owner_user_id, usr_message_id);
 
 
 CREATE TABLE deliveries

server/db/utils.go

@@ -1,6 +1,9 @@
 package db
 
-import "time"
+import (
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"time"
+)
 
 func bool2DB(b bool) int {
 	if b {
@@ -13,3 +16,10 @@ func bool2DB(b bool) int {
 func time2DB(t time.Time) int64 {
 	return t.UnixMilli()
 }
+
+func time2DBOpt(t *time.Time) *int64 {
+	if t == nil {
+		return nil
+	}
+	return langext.Ptr(t.UnixMilli())
+}

server/firebase/firebase.go

@@ -1,12 +1,15 @@
 package firebase
 
 import (
+	"blackforestbytes.com/simplecloudnotifier/models"
 	"context"
 	_ "embed"
 	fb "firebase.google.com/go"
 	"firebase.google.com/go/messaging"
 	"github.com/rs/zerolog/log"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"google.golang.org/api/option"
+	"strconv"
 )
 
 //go:embed scnserviceaccountkey.json
@@ -43,26 +46,26 @@ type Notification struct {
 	Priority int
 }
 
-func (fb App) SendNotification(ctx context.Context, notification Notification) (string, error) {
+func (fb App) SendNotification(ctx context.Context, client models.Client, msg models.Message) (string, error) {
 	n := messaging.Message{
-		Data: map[string]string{"scn_msg_id": notification.Id},
+		Data: map[string]string{"scn_msg_id": strconv.FormatInt(msg.SCNMessageID, 10)},
 		Notification: &messaging.Notification{
-			Title: notification.Title,
+			Title: msg.Title,
-			Body:  notification.Body,
+			Body:  langext.Coalesce(msg.Content, ""),
 		},
 		Android:    nil,
 		APNS:       nil,
 		Webpush:    nil,
 		FCMOptions: nil,
-		Token:      notification.Token,
+		Token:      *client.FCMToken,
 		Topic:      "",
 		Condition:  "",
 	}
-	if notification.Platform == "ios" {
+	if client.Type == models.ClientTypeIOS {
 		n.APNS = nil
 	}
 
-	if notification.Platform == "android" {
+	if client.Type == models.ClientTypeAndroid {
 		n.Android = nil
 	}
 

server/go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/mattn/go-sqlite3 v1.14.16
 	github.com/rs/zerolog v1.28.0
 	github.com/swaggo/swag v1.8.7
-	gogs.mikescher.com/BlackForestBytes/goext v0.0.18
+	gogs.mikescher.com/BlackForestBytes/goext v0.0.20
 	google.golang.org/api v0.103.0
 )
 

server/go.sum

@@ -162,6 +162,12 @@ go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 gogs.mikescher.com/BlackForestBytes/goext v0.0.17 h1:jsfbvII7aa0SH9qY0fnXBdtNnQe1YY3DgXDThEwLICc=
 gogs.mikescher.com/BlackForestBytes/goext v0.0.17/go.mod h1:TMBOjo3FRFh/GiTT0z3nwLmgcFJB87oSF2VMs4XUCTQ=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.18 h1:fprrLoAPGdI4ObveHR1DjiP9WhlTJppWtjqMA6ZkyS8=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.18/go.mod h1:TMBOjo3FRFh/GiTT0z3nwLmgcFJB87oSF2VMs4XUCTQ=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.19 h1:IvCHlIHDviHQXntZFTNdV7qNq5yQnSEMxF8LA0Tf3IY=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.19/go.mod h1:TMBOjo3FRFh/GiTT0z3nwLmgcFJB87oSF2VMs4XUCTQ=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.20 h1:HxJ0iZ838TQnp/a+/DNajdZjZkV43OsK4VbHarOiHTs=
+gogs.mikescher.com/BlackForestBytes/goext v0.0.20/go.mod h1:TMBOjo3FRFh/GiTT0z3nwLmgcFJB87oSF2VMs4XUCTQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=

server/logic/application.go

@@ -6,6 +6,7 @@ import (
 	"blackforestbytes.com/simplecloudnotifier/common/ginresp"
 	"blackforestbytes.com/simplecloudnotifier/db"
 	"blackforestbytes.com/simplecloudnotifier/firebase"
+	"blackforestbytes.com/simplecloudnotifier/models"
 	"context"
 	"github.com/gin-gonic/gin"
 	"github.com/rs/zerolog/log"
@@ -174,3 +175,31 @@ func (app *Application) getPermissions(ctx *AppContext, hdr string) (PermissionS
 
 	return NewEmptyPermissions(), nil
 }
+
+func (app *Application) GetOrCreateChannel(ctx *AppContext, userid int64, chanName string) (models.Channel, error) {
+	chanName = strings.ToLower(strings.TrimSpace(chanName))
+
+	existingChan, err := app.Database.GetChannelByName(ctx, userid, chanName)
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	if existingChan != nil {
+		return *existingChan, nil
+	}
+
+	subscribeKey := app.GenerateRandomAuthKey()
+	sendKey := app.GenerateRandomAuthKey()
+
+	newChan, err := app.Database.CreateChannel(ctx, userid, chanName, subscribeKey, sendKey)
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	_, err = app.Database.CreateSubscribtion(ctx, userid, userid, newChan.Name, newChan.ChannelID, true)
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	return newChan, nil
+}

server/models/delivery.go

@@ -0,0 +1,103 @@
+package models
+
+import (
+	"database/sql"
+	"github.com/blockloop/scan"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"time"
+)
+
+type DeliveryStatus string
+
+const (
+	DeliveryStatusRetry   DeliveryStatus = "RETRY"
+	DeliveryStatusSuccess DeliveryStatus = "SUCCESS"
+	DeliveryStatusFailed  DeliveryStatus = "FAILED"
+)
+
+type Delivery struct {
+	DeliveryID         int64
+	SCNMessageID       int64
+	ReceiverUserID     int64
+	ReceiverClientID   int64
+	TimestampCreated   time.Time
+	TimestampFinalized *time.Time
+	Status             DeliveryStatus
+	RetryCount         int
+	NextDelivery       *time.Time
+	FCMMessageID       *string
+}
+
+func (d Delivery) JSON() DeliveryJSON {
+	return DeliveryJSON{
+		DeliveryID:         d.DeliveryID,
+		SCNMessageID:       d.SCNMessageID,
+		ReceiverUserID:     d.ReceiverUserID,
+		ReceiverClientID:   d.ReceiverClientID,
+		TimestampCreated:   d.TimestampCreated.Format(time.RFC3339Nano),
+		TimestampFinalized: timeOptFmt(d.TimestampFinalized, time.RFC3339Nano),
+		Status:             d.Status,
+		RetryCount:         d.RetryCount,
+		NextDelivery:       timeOptFmt(d.NextDelivery, time.RFC3339Nano),
+		FCMMessageID:       d.FCMMessageID,
+	}
+}
+
+type DeliveryJSON struct {
+	DeliveryID         int64          `json:"delivery_id"`
+	SCNMessageID       int64          `json:"scn_message_id"`
+	ReceiverUserID     int64          `json:"receiver_user_id"`
+	ReceiverClientID   int64          `json:"receiver_client_id"`
+	TimestampCreated   string         `json:"timestamp_created"`
+	TimestampFinalized *string        `json:"tiestamp_finalized"`
+	Status             DeliveryStatus `json:"status"`
+	RetryCount         int            `json:"retry_count"`
+	NextDelivery       *string        `json:"next_delivery"`
+	FCMMessageID       *string        `json:"fcm_message_id"`
+}
+
+type DeliveryDB struct {
+	DeliveryID         int64          `db:"delivery_id"`
+	SCNMessageID       int64          `db:"scn_message_id"`
+	ReceiverUserID     int64          `db:"receiver_user_id"`
+	ReceiverClientID   int64          `db:"receiver_client_id"`
+	TimestampCreated   int64          `db:"timestamp_created"`
+	TimestampFinalized *int64         `db:"tiestamp_finalized"`
+	Status             DeliveryStatus `db:"status"`
+	RetryCount         int            `db:"retry_count"`
+	NextDelivery       *int64         `db:"next_delivery"`
+	FCMMessageID       *string        `db:"fcm_message_id"`
+}
+
+func (d DeliveryDB) Model() Delivery {
+	return Delivery{
+		DeliveryID:         d.DeliveryID,
+		SCNMessageID:       d.SCNMessageID,
+		ReceiverUserID:     d.ReceiverUserID,
+		ReceiverClientID:   d.ReceiverClientID,
+		TimestampCreated:   time.UnixMilli(d.TimestampCreated),
+		TimestampFinalized: timeOptFromMilli(d.TimestampFinalized),
+		Status:             d.Status,
+		RetryCount:         d.RetryCount,
+		NextDelivery:       timeOptFromMilli(d.NextDelivery),
+		FCMMessageID:       d.FCMMessageID,
+	}
+}
+
+func DecodeDelivery(r *sql.Rows) (Delivery, error) {
+	var data DeliveryDB
+	err := scan.RowStrict(&data, r)
+	if err != nil {
+		return Delivery{}, err
+	}
+	return data.Model(), nil
+}
+
+func DecodeDeliveries(r *sql.Rows) ([]Delivery, error) {
+	var data []DeliveryDB
+	err := scan.RowsStrict(&data, r)
+	if err != nil {
+		return nil, err
+	}
+	return langext.ArrMap(data, func(v DeliveryDB) Delivery { return v.Model() }), nil
+}

server/models/message.go

@@ -0,0 +1,100 @@
+package models
+
+import (
+	"database/sql"
+	"github.com/blockloop/scan"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"time"
+)
+
+type Message struct {
+	SCNMessageID    int64
+	SenderUserID    int64
+	OwnerUserID     int64
+	ChannelName     string
+	ChannelID       int64
+	TimestampReal   time.Time
+	TimestampClient *time.Time
+	Title           string
+	Content         *string
+	Priority        int
+	UserMessageID   *string
+}
+
+func (m Message) JSON() MessageJSON {
+	return MessageJSON{
+		SCNMessageID:  m.SCNMessageID,
+		SenderUserID:  m.SenderUserID,
+		OwnerUserID:   m.OwnerUserID,
+		ChannelName:   m.ChannelName,
+		ChannelID:     m.ChannelID,
+		Timestamp:     langext.Coalesce(m.TimestampClient, m.TimestampReal).Format(time.RFC3339Nano),
+		Title:         m.Title,
+		Content:       m.Content,
+		Priority:      m.Priority,
+		UserMessageID: m.UserMessageID,
+		Trimmed:       false,
+	}
+}
+
+type MessageJSON struct {
+	SCNMessageID  int64   `json:"scn_message_id"`
+	SenderUserID  int64   `json:"sender_user_id"`
+	OwnerUserID   int64   `json:"owner_user_id"`
+	ChannelName   string  `json:"channel_name"`
+	ChannelID     int64   `json:"channel_id"`
+	Timestamp     string  `json:"timestamp"`
+	Title         string  `json:"title"`
+	Content       *string `json:"body"`
+	Priority      int     `json:"priority"`
+	UserMessageID *string `json:"usr_message_id"`
+	Trimmed       bool    `json:"trimmed"`
+}
+
+type MessageDB struct {
+	SCNMessageID    int64   `db:"scn_message_id"`
+	SenderUserID    int64   `db:"sender_user_id"`
+	OwnerUserID     int64   `db:"owner_user_id"`
+	ChannelName     string  `db:"channel_name"`
+	ChannelID       int64   `db:"channel_id"`
+	TimestampReal   int64   `db:"timestamp_real"`
+	TimestampClient *int64  `db:"timestamp_client"`
+	Title           string  `db:"title"`
+	Content         *string `db:"content"`
+	Priority        int     `db:"priority"`
+	UserMessageID   *string `db:"usr_message_id"`
+}
+
+func (m MessageDB) Model() Message {
+	return Message{
+		SCNMessageID:    m.SCNMessageID,
+		SenderUserID:    m.SenderUserID,
+		OwnerUserID:     m.OwnerUserID,
+		ChannelName:     m.ChannelName,
+		ChannelID:       m.ChannelID,
+		TimestampReal:   time.UnixMilli(m.TimestampReal),
+		TimestampClient: timeOptFromMilli(m.TimestampClient),
+		Title:           m.Title,
+		Content:         m.Content,
+		Priority:        m.Priority,
+		UserMessageID:   m.UserMessageID,
+	}
+}
+
+func DecodeMessage(r *sql.Rows) (Message, error) {
+	var data MessageDB
+	err := scan.RowStrict(&data, r)
+	if err != nil {
+		return Message{}, err
+	}
+	return data.Model(), nil
+}
+
+func DecodeMessages(r *sql.Rows) ([]Message, error) {
+	var data []MessageDB
+	err := scan.RowsStrict(&data, r)
+	if err != nil {
+		return nil, err
+	}
+	return langext.ArrMap(data, func(v MessageDB) Message { return v.Model() }), nil
+}

server/models/subscription.go

@@ -0,0 +1,80 @@
+package models
+
+import (
+	"database/sql"
+	"github.com/blockloop/scan"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"time"
+)
+
+type Subscription struct {
+	SubscriptionID     int64
+	SubscriberUserID   int64
+	ChannelOwnerUserID int64
+	ChannelID          int64
+	ChannelName        string
+	TimestampCreated   time.Time
+	Confirmed          bool
+}
+
+func (s Subscription) JSON() SubscriptionJSON {
+	return SubscriptionJSON{
+		SubscriptionID:     s.SubscriptionID,
+		SubscriberUserID:   s.SubscriberUserID,
+		ChannelOwnerUserID: s.ChannelOwnerUserID,
+		ChannelID:          s.ChannelID,
+		ChannelName:        s.ChannelName,
+		TimestampCreated:   s.TimestampCreated.Format(time.RFC3339Nano),
+		Confirmed:          s.Confirmed,
+	}
+}
+
+type SubscriptionJSON struct {
+	SubscriptionID     int64  `json:"subscription_id"`
+	SubscriberUserID   int64  `json:"subscriber_user_id"`
+	ChannelOwnerUserID int64  `json:"channel_owner_user_id"`
+	ChannelID          int64  `json:"channel_id"`
+	ChannelName        string `json:"channel_name"`
+	TimestampCreated   string `json:"timestamp_created"`
+	Confirmed          bool   `json:"confirmed"`
+}
+
+type SubscriptionDB struct {
+	SubscriptionID     int64  `db:"subscription_id"`
+	SubscriberUserID   int64  `db:"subscriber_user_id"`
+	ChannelOwnerUserID int64  `db:"channel_owner_user_id"`
+	ChannelID          int64  `db:"channel_id"`
+	ChannelName        string `db:"channel_name"`
+	TimestampCreated   int64  `db:"timestamp_created"`
+	Confirmed          int    `db:"confirmed"`
+}
+
+func (s SubscriptionDB) Model() Subscription {
+	return Subscription{
+		SubscriptionID:     s.SubscriptionID,
+		SubscriberUserID:   s.SubscriberUserID,
+		ChannelOwnerUserID: s.ChannelOwnerUserID,
+		ChannelID:          s.ChannelID,
+		ChannelName:        s.ChannelName,
+		TimestampCreated:   time.UnixMilli(s.TimestampCreated),
+		Confirmed:          s.Confirmed != 0,
+	}
+}
+
+func DecodeSubscription(r *sql.Rows) (Subscription, error) {
+	var data SubscriptionDB
+	err := scan.RowStrict(&data, r)
+	if err != nil {
+		return Subscription{}, err
+	}
+	return data.Model(), nil
+}
+
+func DecodeSubscriptions(r *sql.Rows) ([]Subscription, error) {
+	var data []SubscriptionDB
+	err := scan.RowsStrict(&data, r)
+	if err != nil {
+		return nil, err
+	}
+	return langext.ArrMap(data, func(v SubscriptionDB) Subscription { return v.Model() }), nil
+}

server/models/user.go

@@ -4,6 +4,7 @@ import (
 	"database/sql"
 	"github.com/blockloop/scan"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/timeext"
 	"time"
 )
 
@@ -17,8 +18,8 @@ type User struct {
 	TimestampLastRead *time.Time
 	TimestampLastSent *time.Time
 	MessagesSent      int
-	QuotaToday        int
+	QuotaUsed         int
-	QuotaDay          *string
+	QuotaUsedDay      *string
 	IsPro             bool
 	ProToken          *string
 }
@@ -34,12 +35,41 @@ func (u User) JSON() UserJSON {
 		TimestampLastRead: timeOptFmt(u.TimestampLastRead, time.RFC3339Nano),
 		TimestampLastSent: timeOptFmt(u.TimestampLastSent, time.RFC3339Nano),
 		MessagesSent:      u.MessagesSent,
-		QuotaToday:        u.QuotaToday,
+		QuotaUsed:         u.QuotaUsed,
-		QuotaDay:          u.QuotaDay,
+		QuotaUsedDay:      u.QuotaUsedDay,
 		IsPro:             u.IsPro,
 	}
 }
 
+func (u User) MaxContentLength() int {
+	if u.IsPro {
+		return 16384
+	} else {
+		return 2048
+	}
+}
+
+func (u User) QuotaPerDay() int {
+	if u.IsPro {
+		return 1000
+	} else {
+		return 50
+	}
+}
+
+func (u User) QuotaUsedToday() int {
+	now := time.Now().In(timeext.TimezoneBerlin).Format("2006-01-02")
+	if u.QuotaUsedDay != nil && *u.QuotaUsedDay == now {
+		return u.QuotaUsed
+	} else {
+		return 0
+	}
+}
+
+func (u User) QuotaRemainingToday() int {
+	return u.QuotaPerDay() - u.QuotaUsedToday()
+}
+
 type UserJSON struct {
 	UserID            int64   `json:"user_id"`
 	Username          *string `json:"username"`
@@ -50,8 +80,8 @@ type UserJSON struct {
 	TimestampLastRead *string `json:"timestamp_last_read"`
 	TimestampLastSent *string `json:"timestamp_last_sent"`
 	MessagesSent      int     `json:"messages_sent"`
-	QuotaToday        int     `json:"quota_today"`
+	QuotaUsed         int     `json:"quota_used"`
-	QuotaDay          *string `json:"quota_day"`
+	QuotaUsedDay      *string `json:"quota_used_day"`
 	IsPro             bool    `json:"is_pro"`
 }
 
@@ -65,8 +95,8 @@ type UserDB struct {
 	TimestampLastRead *int64  `db:"timestamp_lastread"`
 	TimestampLastSent *int64  `db:"timestamp_lastsent"`
 	MessagesSent      int     `db:"messages_sent"`
-	QuotaToday        int     `db:"quota_today"`
+	QuotaUsed         int     `db:"quota_used"`
-	QuotaDay          *string `db:"quota_day"`
+	QuotaUsedDay      *string `db:"quota_used_day"`
 	IsPro             bool    `db:"is_pro"`
 	ProToken          *string `db:"pro_token"`
 }
@@ -82,8 +112,8 @@ func (u UserDB) Model() User {
 		TimestampLastRead: timeOptFromMilli(u.TimestampLastRead),
 		TimestampLastSent: timeOptFromMilli(u.TimestampLastSent),
 		MessagesSent:      u.MessagesSent,
-		QuotaToday:        u.QuotaToday,
+		QuotaUsed:         u.QuotaUsed,
-		QuotaDay:          u.QuotaDay,
+		QuotaUsedDay:      u.QuotaUsedDay,
 		IsPro:             u.IsPro,
 	}
 }

server/swagger/swagger.json

@@ -9,6 +9,88 @@
     "host": "scn.blackforestbytes.com",
     "basePath": "/",
     "paths": {
+        "/": {
+            "post": {
+                "summary": "Send a new message",
+                "parameters": [
+                    {
+                        "type": "string",
+                        "name": "message_content",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "message_title",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "name": "priority",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "name": "sendTimestamp",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "userMessageID",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "user_id",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "user_key",
+                        "in": "query"
+                    },
+                    {
+                        "description": " ",
+                        "name": "post_body",
+                        "in": "body",
+                        "schema": {
+                            "$ref": "#/definitions/handler.SendMessage.body"
+                        }
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/models.ClientJSON"
+                        }
+                    },
+                    "400": {
+                        "description": "Bad Request",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "401": {
+                        "description": "Unauthorized",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "404": {
+                        "description": "Not Found",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal Server Error",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    }
+                }
+            }
+        },
         "/api-v2/user/": {
             "post": {
                 "summary": "Create a new user",
@@ -688,6 +770,88 @@
                     }
                 }
             }
+        },
+        "/send": {
+            "post": {
+                "summary": "Send a new message",
+                "parameters": [
+                    {
+                        "type": "string",
+                        "name": "message_content",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "message_title",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "name": "priority",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "name": "sendTimestamp",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "userMessageID",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "user_id",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "user_key",
+                        "in": "query"
+                    },
+                    {
+                        "description": " ",
+                        "name": "post_body",
+                        "in": "body",
+                        "schema": {
+                            "$ref": "#/definitions/handler.SendMessage.body"
+                        }
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/models.ClientJSON"
+                        }
+                    },
+                    "400": {
+                        "description": "Bad Request",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "401": {
+                        "description": "Unauthorized",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "404": {
+                        "description": "Not Found",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal Server Error",
+                        "schema": {
+                            "$ref": "#/definitions/ginresp.apiError"
+                        }
+                    }
+                }
+            }
         }
     },
     "definitions": {
@@ -894,6 +1058,32 @@
                 }
             }
         },
+        "handler.SendMessage.body": {
+            "type": "object",
+            "properties": {
+                "message_content": {
+                    "type": "string"
+                },
+                "message_title": {
+                    "type": "string"
+                },
+                "priority": {
+                    "type": "integer"
+                },
+                "sendTimestamp": {
+                    "type": "integer"
+                },
+                "userMessageID": {
+                    "type": "string"
+                },
+                "user_id": {
+                    "type": "string"
+                },
+                "user_key": {
+                    "type": "string"
+                }
+            }
+        },
         "handler.Update.response": {
             "type": "object",
             "properties": {

server/swagger/swagger.yaml

@@ -132,6 +132,23 @@ definitions:
       success:
         type: string
     type: object
+  handler.SendMessage.body:
+    properties:
+      message_content:
+        type: string
+      message_title:
+        type: string
+      priority:
+        type: integer
+      sendTimestamp:
+        type: integer
+      user_id:
+        type: string
+      user_key:
+        type: string
+      userMessageID:
+        type: string
+    type: object
   handler.Update.response:
     properties:
       is_pro:
@@ -272,6 +289,57 @@ info:
   title: SimpleCloudNotifier API
   version: "2.0"
 paths:
+  /:
+    post:
+      parameters:
+      - in: query
+        name: message_content
+        type: string
+      - in: query
+        name: message_title
+        type: string
+      - in: query
+        name: priority
+        type: integer
+      - in: query
+        name: sendTimestamp
+        type: integer
+      - in: query
+        name: userMessageID
+        type: string
+      - in: query
+        name: user_id
+        type: string
+      - in: query
+        name: user_key
+        type: string
+      - description: ' '
+        in: body
+        name: post_body
+        schema:
+          $ref: '#/definitions/handler.SendMessage.body'
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/models.ClientJSON'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "401":
+          description: Unauthorized
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "404":
+          description: Not Found
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+      summary: Send a new message
   /api-v2/user/:
     post:
       operationId: api-user-create
@@ -720,4 +788,55 @@ paths:
           description: Internal Server Error
           schema:
             $ref: '#/definitions/ginresp.apiError'
+  /send:
+    post:
+      parameters:
+      - in: query
+        name: message_content
+        type: string
+      - in: query
+        name: message_title
+        type: string
+      - in: query
+        name: priority
+        type: integer
+      - in: query
+        name: sendTimestamp
+        type: integer
+      - in: query
+        name: userMessageID
+        type: string
+      - in: query
+        name: user_id
+        type: string
+      - in: query
+        name: user_key
+        type: string
+      - description: ' '
+        in: body
+        name: post_body
+        schema:
+          $ref: '#/definitions/handler.SendMessage.body'
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/models.ClientJSON'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "401":
+          description: Unauthorized
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "404":
+          description: Not Found
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/ginresp.apiError'
+      summary: Send a new message
 swagger: "2.0"