threema-ios/Threema/WebGroupSyncRequest.swift

//  _____ _
// |_   _| |_  _ _ ___ ___ _ __  __ _
//   | | | ' \| '_/ -_) -_) '  \/ _` |_
//   |_| |_||_|_| \___\___|_|_|_\__,_(_)
//
// Threema iOS Client
// Copyright (c) 2018-2020 Threema GmbH
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

import Foundation

class WebGroupSyncRequest: WebAbstractMessage {
    
    let id: Data
    
//    var success: Bool = false
//    var error: String?
    
    override init(message:WebAbstractMessage) {
        let idString = message.args!["id"] as! String
        id = idString.hexadecimal()!
        super.init(message: message)
    }
    
    func syncGroup() {
        ack = WebAbstractMessageAcknowledgement.init(requestId, false, nil)
        let entityManager = EntityManager()
        let conversation = entityManager.entityFetcher.conversation(forGroupId: id)
        
        if conversation == nil {
            ack!.success = false
            ack!.error = "invalidGroup"
            return
        }
        
        let groupProxy = GroupProxy.init(for: conversation, entityManager: entityManager)
         
        if groupProxy == nil {
            ack!.success = false
            ack!.error = "invalidGroup"
            return
        }
        
        if !groupProxy!.isOwnGroup() {
            ack!.success = false
            ack!.error = "notAllowed"
            return
        }
        
        DispatchQueue.main.async {
            groupProxy?.syncGroupInfoToAll()
        }
        ack!.success = true
    }
}