337 lines
8.5 KiB
Go
337 lines
8.5 KiB
Go
package logic
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import (
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scn "blackforestbytes.com/simplecloudnotifier"
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"blackforestbytes.com/simplecloudnotifier/api/apierr"
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"blackforestbytes.com/simplecloudnotifier/common/ginresp"
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"blackforestbytes.com/simplecloudnotifier/db"
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"blackforestbytes.com/simplecloudnotifier/google"
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"blackforestbytes.com/simplecloudnotifier/models"
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"blackforestbytes.com/simplecloudnotifier/push"
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"context"
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"github.com/gin-gonic/gin"
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"github.com/gin-gonic/gin/binding"
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"github.com/rs/zerolog/log"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"gogs.mikescher.com/BlackForestBytes/goext/syncext"
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"math/rand"
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"net"
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"net/http"
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"os"
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"os/signal"
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"regexp"
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"strings"
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"syscall"
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"time"
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)
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type Application struct {
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Config scn.Config
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Gin *gin.Engine
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Database *db.Database
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Pusher push.NotificationClient
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AndroidPublisher google.AndroidPublisherClient
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Jobs []Job
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stopChan chan bool
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Port string
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IsRunning *syncext.AtomicBool
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}
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func NewApp(db *db.Database) *Application {
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return &Application{
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Database: db,
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stopChan: make(chan bool),
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IsRunning: syncext.NewAtomicBool(false),
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}
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}
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func (app *Application) Init(cfg scn.Config, g *gin.Engine, fb push.NotificationClient, apc google.AndroidPublisherClient, jobs []Job) {
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app.Config = cfg
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app.Gin = g
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app.Pusher = fb
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app.AndroidPublisher = apc
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app.Jobs = jobs
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}
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func (app *Application) Stop() {
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// non-blocking send
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select {
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case app.stopChan <- true:
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}
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}
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func (app *Application) Run() {
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httpserver := &http.Server{
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Addr: net.JoinHostPort(app.Config.ServerIP, app.Config.ServerPort),
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Handler: app.Gin,
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}
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errChan := make(chan error)
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go func() {
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ln, err := net.Listen("tcp", httpserver.Addr)
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if err != nil {
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errChan <- err
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return
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}
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_, port, err := net.SplitHostPort(ln.Addr().String())
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if err != nil {
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errChan <- err
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return
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}
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log.Info().Str("address", httpserver.Addr).Msg("HTTP-Server started on http://localhost:" + port)
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app.Port = port
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app.IsRunning.Set(true) // the net.Listener a few lines above is at this point actually already buffering requests
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errChan <- httpserver.Serve(ln)
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}()
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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for _, job := range app.Jobs {
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job.Start()
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}
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select {
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case <-stop:
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ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer cancel()
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log.Info().Msg("Stopping HTTP-Server")
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err := httpserver.Shutdown(ctx)
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if err != nil {
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log.Info().Err(err).Msg("Error while stopping the http-server")
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} else {
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log.Info().Msg("Stopped HTTP-Server")
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}
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case err := <-errChan:
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log.Error().Err(err).Msg("HTTP-Server failed")
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case _ = <-app.stopChan:
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ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer cancel()
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log.Info().Msg("Manually stopping HTTP-Server")
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err := httpserver.Shutdown(ctx)
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if err != nil {
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log.Info().Err(err).Msg("Error while stopping the http-server")
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} else {
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log.Info().Msg("Manually stopped HTTP-Server")
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}
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}
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for _, job := range app.Jobs {
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job.Stop()
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}
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app.IsRunning.Set(false)
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}
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func (app *Application) GenerateRandomAuthKey() string {
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charset := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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k := ""
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for i := 0; i < 64; i++ {
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k += string(charset[rand.Int()%len(charset)])
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}
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return k
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}
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func (app *Application) QuotaMax(ispro bool) int {
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if ispro {
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return 1000
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} else {
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return 50
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}
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}
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func (app *Application) VerifyProToken(ctx *AppContext, token string) (bool, error) {
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if strings.HasPrefix(token, "ANDROID|v2|") {
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subToken := token[len("ANDROID|v2|"):]
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return app.VerifyAndroidProToken(ctx, subToken)
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}
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if strings.HasPrefix(token, "IOS|v2|") {
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subToken := token[len("IOS|v2|"):]
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return app.VerifyIOSProToken(ctx, subToken)
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}
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return false, nil
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}
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func (app *Application) VerifyAndroidProToken(ctx *AppContext, token string) (bool, error) {
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purchase, err := app.AndroidPublisher.GetProductPurchase(ctx, app.Config.GooglePackageName, app.Config.GoogleProProductID, token)
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if err != nil {
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return false, err
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}
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if purchase == nil {
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return false, nil
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}
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if purchase.PurchaseState == nil {
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return false, nil
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}
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if *purchase.PurchaseState != google.PurchaseStatePurchased {
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return false, nil
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}
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return true, nil
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}
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func (app *Application) VerifyIOSProToken(ctx *AppContext, token string) (bool, error) {
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return false, nil //TODO IOS
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}
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func (app *Application) Migrate() error {
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ctx, cancel := context.WithTimeout(context.Background(), 24*time.Second)
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defer cancel()
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return app.Database.Migrate(ctx)
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}
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func (app *Application) StartRequest(g *gin.Context, uri any, query any, body any, form any) (*AppContext, *ginresp.HTTPResponse) {
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if uri != nil {
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if err := g.ShouldBindUri(uri); err != nil {
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return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_URI_PARAM, "Failed to read uri", err))
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}
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}
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if query != nil {
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if err := g.ShouldBindQuery(query); err != nil {
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return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_QUERY_PARAM, "Failed to read query", err))
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}
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}
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if body != nil && g.ContentType() == "application/json" {
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if err := g.ShouldBindJSON(body); err != nil {
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return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "Failed to read body", err))
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}
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}
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if form != nil && g.ContentType() == "multipart/form-data" {
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if err := g.ShouldBindWith(form, binding.Form); err != nil {
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return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.BINDFAIL_BODY_PARAM, "Failed to read multipart-form", err))
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}
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}
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ictx, cancel := context.WithTimeout(context.Background(), app.Config.RequestTimeout)
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actx := CreateAppContext(g, ictx, cancel)
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authheader := g.GetHeader("Authorization")
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perm, err := app.getPermissions(actx, authheader)
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if err != nil {
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cancel()
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return nil, langext.Ptr(ginresp.APIError(g, 400, apierr.PERM_QUERY_FAIL, "Failed to determine permissions", err))
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}
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actx.permissions = perm
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return actx, nil
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}
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func (app *Application) NewSimpleTransactionContext(timeout time.Duration) *SimpleContext {
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ictx, cancel := context.WithTimeout(context.Background(), timeout)
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return CreateSimpleContext(ictx, cancel)
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}
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func (app *Application) getPermissions(ctx *AppContext, hdr string) (PermissionSet, error) {
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if hdr == "" {
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return NewEmptyPermissions(), nil
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}
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if !strings.HasPrefix(hdr, "SCN ") {
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return NewEmptyPermissions(), nil
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}
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key := strings.TrimSpace(hdr[4:])
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user, err := app.Database.GetUserByKey(ctx, key)
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if err != nil {
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return PermissionSet{}, err
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}
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if user != nil && user.SendKey == key {
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return PermissionSet{UserID: langext.Ptr(user.UserID), KeyType: PermKeyTypeUserSend}, nil
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}
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if user != nil && user.ReadKey == key {
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return PermissionSet{UserID: langext.Ptr(user.UserID), KeyType: PermKeyTypeUserRead}, nil
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}
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if user != nil && user.AdminKey == key {
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return PermissionSet{UserID: langext.Ptr(user.UserID), KeyType: PermKeyTypeUserAdmin}, nil
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}
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return NewEmptyPermissions(), nil
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}
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func (app *Application) GetOrCreateChannel(ctx *AppContext, userid models.UserID, chanName string) (models.Channel, error) {
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chanName = app.NormalizeChannelName(chanName)
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existingChan, err := app.Database.GetChannelByName(ctx, userid, chanName)
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if err != nil {
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return models.Channel{}, err
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}
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if existingChan != nil {
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return *existingChan, nil
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}
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subscribeKey := app.GenerateRandomAuthKey()
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sendKey := app.GenerateRandomAuthKey()
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newChan, err := app.Database.CreateChannel(ctx, userid, chanName, subscribeKey, sendKey)
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if err != nil {
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return models.Channel{}, err
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}
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_, err = app.Database.CreateSubscription(ctx, userid, newChan, true)
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if err != nil {
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return models.Channel{}, err
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}
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return newChan, nil
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}
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func (app *Application) NormalizeChannelName(v string) string {
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rex := regexp.MustCompile("[^[:alnum:]\\-_]")
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v = strings.TrimSpace(v)
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v = strings.ToLower(v)
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v = rex.ReplaceAllString(v, "")
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return v
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}
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func (app *Application) NormalizeUsername(v string) string {
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rex := regexp.MustCompile("[^[:alnum:]\\-_ ]")
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v = strings.TrimSpace(v)
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v = rex.ReplaceAllString(v, "")
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return v
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}
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func (app *Application) DeliverMessage(ctx context.Context, client models.Client, msg models.Message) (*string, error) {
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if client.FCMToken != nil {
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fcmDelivID, err := app.Pusher.SendNotification(ctx, client, msg)
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if err != nil {
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log.Warn().Int64("SCNMessageID", msg.SCNMessageID.IntID()).Int64("ClientID", client.ClientID.IntID()).Err(err).Msg("FCM Delivery failed")
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return nil, err
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}
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return langext.Ptr(fcmDelivID), nil
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} else {
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return langext.Ptr(""), nil
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}
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}
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