package logic import ( scn "blackforestbytes.com/simplecloudnotifier" "blackforestbytes.com/simplecloudnotifier/api/apierr" "blackforestbytes.com/simplecloudnotifier/api/ginresp" "blackforestbytes.com/simplecloudnotifier/db/simplectx" "blackforestbytes.com/simplecloudnotifier/google" "blackforestbytes.com/simplecloudnotifier/models" "blackforestbytes.com/simplecloudnotifier/push" "context" "errors" "fmt" "github.com/gin-gonic/gin" "github.com/gin-gonic/gin/binding" "github.com/rs/zerolog/log" "gogs.mikescher.com/BlackForestBytes/goext/langext" "gogs.mikescher.com/BlackForestBytes/goext/rext" "gogs.mikescher.com/BlackForestBytes/goext/syncext" "net" "net/http" "os" "os/signal" "regexp" "strings" "syscall" "time" ) var rexWhitespaceStart = rext.W(regexp.MustCompile("^\\s+")) var rexWhitespaceEnd = rext.W(regexp.MustCompile("\\s+$")) var rexNormalizeUsername = rext.W(regexp.MustCompile("[^[:alnum:]\\-_ ]")) var rexCompatTitleChannel = rext.W(regexp.MustCompile("^\\[(?P[A-Za-z\\-0-9_ ]+)] (?P(.|\\r|\\n)+)$")) type Application struct { Config scn.Config Gin *gin.Engine Database *DBPool Pusher push.NotificationClient AndroidPublisher google.AndroidPublisherClient Jobs []Job stopChan chan bool Port string IsRunning *syncext.AtomicBool RequestLogQueue chan models.RequestLog } func NewApp(db *DBPool) *Application { return &Application{ Database: db, stopChan: make(chan bool), IsRunning: syncext.NewAtomicBool(false), RequestLogQueue: make(chan models.RequestLog, 1024), } } func (app *Application) Init(cfg scn.Config, g *gin.Engine, fb push.NotificationClient, apc google.AndroidPublisherClient, jobs []Job) { app.Config = cfg app.Gin = g app.Pusher = fb app.AndroidPublisher = apc app.Jobs = jobs } func (app *Application) Stop() { // non-blocking send select { case app.stopChan <- true: } } func (app *Application) Run() { httpserver := &http.Server{ Addr: net.JoinHostPort(app.Config.ServerIP, app.Config.ServerPort), Handler: app.Gin, } errChan := make(chan error) go func() { ln, err := net.Listen("tcp", httpserver.Addr) if err != nil { errChan <- err return } _, port, err := net.SplitHostPort(ln.Addr().String()) if err != nil { errChan <- err return } log.Info().Str("address", httpserver.Addr).Msg("HTTP-Server started on http://localhost:" + port) app.Port = port app.IsRunning.Set(true) // the net.Listener a few lines above is at this point actually already buffering requests errChan <- httpserver.Serve(ln) }() sigstop := make(chan os.Signal, 1) signal.Notify(sigstop, os.Interrupt, syscall.SIGTERM) for _, job := range app.Jobs { err := job.Start() if err != nil { log.Fatal().Err(err).Msg("Failed to start job") } } select { case <-sigstop: ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) defer cancel() log.Info().Msg("Stopping HTTP-Server") err := httpserver.Shutdown(ctx) if err != nil { log.Info().Err(err).Msg("Error while stopping the http-server") } else { log.Info().Msg("Stopped HTTP-Server") } case err := <-errChan: log.Error().Err(err).Msg("HTTP-Server failed") case _ = <-app.stopChan: ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) defer cancel() log.Info().Msg("Manually stopping HTTP-Server") err := httpserver.Shutdown(ctx) if err != nil { log.Info().Err(err).Msg("Error while stopping the http-server") } else { log.Info().Msg("Manually stopped HTTP-Server") } } for _, job := range app.Jobs { job.Stop() } log.Info().Msg("Manually stopped Jobs") ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) defer cancel() err := app.Database.Stop(ctx) if err != nil { log.Info().Err(err).Msg("Error while stopping the database") } log.Info().Msg("Manually closed database connection") app.IsRunning.Set(false) } func (app *Application) GenerateRandomAuthKey() string { return scn.RandomAuthKey() } func (app *Application) VerifyProToken(ctx *AppContext, token string) (bool, error) { if strings.HasPrefix(token, "ANDROID|v1|") { subToken := token[len("ANDROID|v1|"):] return app.VerifyAndroidProToken(ctx, subToken) } if strings.HasPrefix(token, "ANDROID|v2|") { subToken := token[len("ANDROID|v2|"):] return app.VerifyAndroidProToken(ctx, subToken) } if strings.HasPrefix(token, "IOS|v1|") { return false, errors.New("invalid token-version: ios-v1") } if strings.HasPrefix(token, "IOS|v2|") { subToken := token[len("IOS|v2|"):] return app.VerifyIOSProToken(ctx, subToken) } return false, nil } func (app *Application) VerifyAndroidProToken(ctx *AppContext, token string) (bool, error) { purchase, err := app.AndroidPublisher.GetProductPurchase(ctx, app.Config.GooglePackageName, app.Config.GoogleProProductID, token) if err != nil { return false, err } if purchase == nil { return false, nil } if purchase.PurchaseState == nil { return false, nil } if *purchase.PurchaseState != google.PurchaseStatePurchased { return false, nil } return true, nil } func (app *Application) VerifyIOSProToken(ctx *AppContext, token string) (bool, error) { return false, nil //TODO IOS } func (app *Application) Migrate() error { ctx, cancel := context.WithTimeout(context.Background(), 24*time.Second) defer cancel() return app.Database.Migrate(ctx) } type RequestOptions struct { IgnoreWrongContentType bool } func (app *Application) StartRequest(g *gin.Context, uri any, query any, body any, form any, opts ...RequestOptions) (*AppContext, *ginresp.HTTPResponse) { ignoreWrongContentType := langext.ArrAny(opts, func(o RequestOptions) bool { return o.IgnoreWrongContentType }) if uri != nil { if err := g.ShouldBindUri(uri); err != nil { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_URI_PARAM, "Failed to read uri", err)) } } if query != nil { if err := g.ShouldBindQuery(query); err != nil { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_QUERY_PARAM, "Failed to read query", err)) } } if body != nil { if g.ContentType() == "application/json" { if err := g.ShouldBindJSON(body); err != nil { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "Failed to read body", err)) } } else { if !ignoreWrongContentType { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "missing JSON body", nil)) } } } if form != nil { if g.ContentType() == "multipart/form-data" { if err := g.ShouldBindWith(form, binding.Form); err != nil { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "Failed to read multipart-form", err)) } } else if g.ContentType() == "application/x-www-form-urlencoded" { if err := g.ShouldBindWith(form, binding.Form); err != nil { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "Failed to read urlencoded-form", err)) } } else { if !ignoreWrongContentType { return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "missing form body", nil)) } } } ictx, cancel := context.WithTimeout(context.Background(), app.Config.RequestTimeout) actx := CreateAppContext(app, g, ictx, cancel) authheader := g.GetHeader("Authorization") perm, err := app.getPermissions(actx, authheader) if err != nil { cancel() return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.PERM_QUERY_FAIL, "Failed to determine permissions", err)) } actx.permissions = perm g.Set("perm", perm) return actx, nil } func (app *Application) NewSimpleTransactionContext(timeout time.Duration) *simplectx.SimpleContext { ictx, cancel := context.WithTimeout(context.Background(), timeout) return simplectx.CreateSimpleContext(ictx, cancel) } func (app *Application) getPermissions(ctx *AppContext, hdr string) (models.PermissionSet, error) { if hdr == "" { return models.NewEmptyPermissions(), nil } if !strings.HasPrefix(hdr, "SCN ") { return models.NewEmptyPermissions(), nil } key := strings.TrimSpace(hdr[4:]) tok, err := app.Database.Primary.GetKeyTokenByToken(ctx, key) if err != nil { return models.PermissionSet{}, err } if tok != nil { err = app.Database.Primary.UpdateKeyTokenLastUsed(ctx, tok.KeyTokenID) if err != nil { return models.PermissionSet{}, err } return models.PermissionSet{Token: tok}, nil } return models.NewEmptyPermissions(), nil } func (app *Application) GetOrCreateChannel(ctx *AppContext, userid models.UserID, displayChanName string, intChanName string) (models.Channel, error) { existingChan, err := app.Database.Primary.GetChannelByName(ctx, userid, intChanName) if err != nil { return models.Channel{}, err } if existingChan != nil { return *existingChan, nil } subscribeKey := app.GenerateRandomAuthKey() newChan, err := app.Database.Primary.CreateChannel(ctx, userid, displayChanName, intChanName, subscribeKey, nil) if err != nil { return models.Channel{}, err } _, err = app.Database.Primary.CreateSubscription(ctx, userid, newChan, true) if err != nil { return models.Channel{}, err } return newChan, nil } func (app *Application) NormalizeChannelDisplayName(v string) string { return strings.TrimSpace(v) } func (app *Application) NormalizeChannelInternalName(v string) string { return strings.TrimSpace(v) } func (app *Application) NormalizeUsername(v string) string { return strings.TrimSpace(v) } func (app *Application) DeliverMessage(ctx context.Context, client models.Client, msg models.Message, compatTitleOverride *string, compatMsgIDOverride *string) (string, error) { fcmDelivID, err := app.Pusher.SendNotification(ctx, client, msg, compatTitleOverride, compatMsgIDOverride) if err != nil { log.Warn().Str("MessageID", msg.MessageID.String()).Str("ClientID", client.ClientID.String()).Err(err).Msg("FCM Delivery failed") return "", err } return fcmDelivID, nil } func (app *Application) InsertRequestLog(data models.RequestLog) { ok := syncext.WriteNonBlocking(app.RequestLogQueue, data) if !ok { log.Error().Msg("failed to insert request-log (queue full)") } } func (app *Application) CompatizeMessageTitle(ctx TxContext, msg models.Message) string { if msg.ChannelInternalName == "main" { if rexCompatTitleChannel.IsMatch(msg.Title) { return "!" + msg.Title // channel in title ?! } return msg.Title } channel, err := app.Database.Primary.GetChannelByID(ctx, msg.ChannelID) if err != nil { return fmt.Sprintf("[%s] %s", "%SCN-ERR%", msg.Title) } return fmt.Sprintf("[%s] %s", channel.DisplayName, msg.Title) }