Migrate to stateless app.App (#17542)

* add request context

* move initialialization to server

* use app interface instead of global app functions

* remove app context from webconn

* cleanup

* remove duplicated services

* move context to separate package

* remove finalize init method and move content to NewServer function

* restart workers and schedulers after adding license for tests

* reflect review comments

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

api4/integration_action.go

@@ -41,12 +41,12 @@ func doPostAction(c *Context, w http.ResponseWriter, r *http.Request) {
 			c.Err = model.NewAppError("DoPostAction", "api.post.do_action.action_integration.app_error", nil, "err="+err.Error(), http.StatusBadRequest)
 			return
 		}
-		if !c.App.SessionHasPermissionToChannel(*c.App.Session(), cookie.ChannelId, model.PERMISSION_READ_CHANNEL) {
+		if !c.App.SessionHasPermissionToChannel(*c.AppContext.Session(), cookie.ChannelId, model.PERMISSION_READ_CHANNEL) {
 			c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
 			return
 		}
 	} else {
-		if !c.App.SessionHasPermissionToChannelByPost(*c.App.Session(), c.Params.PostId, model.PERMISSION_READ_CHANNEL) {
+		if !c.App.SessionHasPermissionToChannelByPost(*c.AppContext.Session(), c.Params.PostId, model.PERMISSION_READ_CHANNEL) {
 			c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
 			return
 		}
@@ -55,7 +55,7 @@ func doPostAction(c *Context, w http.ResponseWriter, r *http.Request) {
 	var appErr *model.AppError
 	resp := &model.PostActionAPIResponse{Status: "OK"}
 
-	resp.TriggerId, appErr = c.App.DoPostActionWithCookie(c.Params.PostId, c.Params.ActionId, c.App.Session().UserId,
+	resp.TriggerId, appErr = c.App.DoPostActionWithCookie(c.AppContext, c.Params.PostId, c.Params.ActionId, c.AppContext.Session().UserId,
 		actionRequest.SelectedOption, cookie)
 	if appErr != nil {
 		c.Err = appErr
@@ -101,19 +101,19 @@ func submitDialog(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	submit.UserId = c.App.Session().UserId
+	submit.UserId = c.AppContext.Session().UserId
 
-	if !c.App.SessionHasPermissionToChannel(*c.App.Session(), submit.ChannelId, model.PERMISSION_READ_CHANNEL) {
+	if !c.App.SessionHasPermissionToChannel(*c.AppContext.Session(), submit.ChannelId, model.PERMISSION_READ_CHANNEL) {
 		c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
 		return
 	}
 
-	if !c.App.SessionHasPermissionToTeam(*c.App.Session(), submit.TeamId, model.PERMISSION_VIEW_TEAM) {
+	if !c.App.SessionHasPermissionToTeam(*c.AppContext.Session(), submit.TeamId, model.PERMISSION_VIEW_TEAM) {
 		c.SetPermissionError(model.PERMISSION_VIEW_TEAM)
 		return
 	}
 
-	resp, err := c.App.SubmitInteractiveDialog(submit)
+	resp, err := c.App.SubmitInteractiveDialog(c.AppContext, submit)
 	if err != nil {
 		c.Err = err
 		return