update simplexmq

* filter out on merge

* checl contact, ldn

* fix

* corrections

* fix

* refactor

* diff

* refactor2

* remove contact id from error

* Revert "remove contact id from error"

This reverts commit f58af3dcac.

* remove Maybe from error

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>

README.md

@@ -234,6 +234,8 @@ You can use SimpleX with your own servers and still communicate with people usin
 
 Recent and important updates:
 
+[Jan 24, 2024. SimpleX Chat: free infrastructure from Linode, v5.5 released with private notes, group history and a simpler UX to connect.](./blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.md)
+
 [Nov 25, 2023. SimpleX Chat v5.4 released: link mobile and desktop apps via quantum resistant protocol, and much better groups](./blog/20231125-simplex-chat-v5-4-link-mobile-desktop-quantum-resistant-better-groups.md).
 
 [Sep 25, 2023. SimpleX Chat v5.3 released: desktop app, local file encryption, improved groups and directory service](./blog/20230925-simplex-chat-v5-3-desktop-app-local-file-encryption-directory-service.md).
@@ -299,7 +301,7 @@ What is already implemented:
 11. Transport isolation - different TCP connections and Tor circuits are used for traffic of different user profiles, optionally - for different contacts and group member connections.
 12. Manual messaging queue rotations to move conversation to another SMP relay.
 13. Sending end-to-end encrypted files using [XFTP protocol](https://simplex.chat/blog/20230301-simplex-file-transfer-protocol.html).
-14. Local files encryption, except videos (to be added later).
+14. Local files encryption.
 
 We plan to add:
 
@@ -371,12 +373,13 @@ Please also join [#simplex-devs](https://simplex.chat/contact#/?v=1-2&smp=smp%3A
 - ✅ Desktop client.
 - ✅ Encryption of local files stored in the app.
 - ✅ Using mobile profiles from the desktop app.
+- ✅ Private notes.
+- ✅ Improve sending videos (including encryption of locally stored videos).
 - 🏗 Improve experience for the new users.
 - 🏗 Post-quantum resistant key exchange in double ratchet protocol.
 - 🏗 Large groups, communities and public channels.
-- Message delivery relay for senders (to conceal IP address from the recipients' servers and to reduce the traffic).
+- 🏗 Message delivery relay for senders (to conceal IP address from the recipients' servers and to reduce the traffic).
 - Privacy & security slider - a simple way to set all settings at once.
-- Improve sending videos (including encryption of locally stored videos).
 - SMP queue redundancy and rotation (manual is supported).
 - Include optional message into connection request sent via contact address.
 - Improved navigation and search in the conversation (expand and scroll to quoted message, scroll to search results, etc.).

apps/ios/Shared/Model/ChatModel.swift

@@ -556,10 +556,9 @@ final class ChatModel: ObservableObject {
     }
 
     // this function analyses "connected" events and assumes that each member will be there only once
-    func getConnectedMemberNames(_ chatItem: ChatItem) -> (Int, [String], String?) {
+    func getConnectedMemberNames(_ chatItem: ChatItem) -> (Int, [String]) {
         var count = 0
         var ns: [String] = []
-        var lastNonConnectedEvent: String? = nil
         if let ciCategory = chatItem.mergeCategory,
            var i = getChatItemIndex(chatItem) {
             while i < reversedChatItems.count {
@@ -567,14 +566,12 @@ final class ChatModel: ObservableObject {
                 if ci.mergeCategory != ciCategory { break }
                 if let m = ci.memberConnected {
                     ns.append(m.displayName)
-                } else if count == 0 {
-                    lastNonConnectedEvent = if let name = ci.memberDisplayName { name + " " + ci.text } else { ci.text }
                 }
                 count += 1
                 i += 1
             }
         }
-        return (count, ns, lastNonConnectedEvent)
+        return (count, ns)
     }
 
     // returns the index of the passed item and the next item (it has smaller index)

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -252,12 +252,6 @@ func apiSetFilesFolder(filesFolder: String) throws {
     throw r
 }
 
-func setXFTPConfig(_ cfg: XFTPFileConfig?) throws {
-    let r = chatSendCmdSync(.apiSetXFTPConfig(config: cfg))
-    if case .cmdOk = r { return }
-    throw r
-}
-
 func apiSetEncryptLocalFiles(_ enable: Bool) throws {
     let r = chatSendCmdSync(.apiSetEncryptLocalFiles(enable: enable))
     if case .cmdOk = r { return }
@@ -1249,7 +1243,6 @@ func initializeChat(start: Bool, confirmStart: Bool = false, dbKey: String? = ni
     }
     try apiSetTempFolder(tempFolder: getTempFilesDirectory().path)
     try apiSetFilesFolder(filesFolder: getAppFilesDirectory().path)
-    try setXFTPConfig(getXFTPCfg())
     try apiSetEncryptLocalFiles(privacyEncryptLocalFilesGroupDefault.get())
     m.chatInitialized = true
     m.currentUser = try apiGetActiveUser()
@@ -1861,7 +1854,9 @@ func chatItemSimpleUpdate(_ user: any UserLike, _ aChatItem: AChatItem) async {
     let cItem = aChatItem.chatItem
     if active(user) {
         if await MainActor.run(body: { m.upsertChatItem(cInfo, cItem) }) {
-            NtfManager.shared.notifyMessageReceived(user, cInfo, cItem)
+            if cItem.showNotification {
+                NtfManager.shared.notifyMessageReceived(user, cInfo, cItem)
+            }
         }
     }
 }

apps/ios/Shared/Views/Chat/ChatItemView.swift

@@ -149,7 +149,7 @@ struct ChatItemContentView<Content: View>: View {
     }
 
     private var mergedGroupEventText: Text? {
-        let (count, ns, lastNonConnectedEvent) = chatModel.getConnectedMemberNames(chatItem)
+        let (count, ns) = chatModel.getConnectedMemberNames(chatItem)
         let members: LocalizedStringKey =
             switch ns.count {
             case 1: "\(ns[0]) connected"
@@ -162,8 +162,6 @@ struct ChatItemContentView<Content: View>: View {
             }
         return if count <= 1 {
             nil
-        } else if let last = lastNonConnectedEvent {
-            Text(last) + Text(" ") + Text("and \(count - ns.count) other events")
         } else if ns.count == 0 {
             Text("\(count) group events")
         } else if count > ns.count {

apps/ios/Shared/Views/Chat/ChatView.swift

@@ -749,7 +749,9 @@ struct ChatView: View {
                 if ci.meta.editable && !mc.isVoice && !live {
                     menu.append(editAction(ci))
                 }
-                menu.append(viewInfoUIAction(ci))
+                if !ci.isLiveDummy {
+                    menu.append(viewInfoUIAction(ci))
+                }
                 if revealed {
                     menu.append(hideUIAction())
                 }

apps/ios/Shared/Views/Chat/ComposeMessage/ComposeView.swift

@@ -978,6 +978,9 @@ struct ComposeView: View {
     }
 
     private func cancelLinkPreview() {
+        if let pendingLink = pendingLinkUrl?.absoluteString {
+            cancelledLinks.insert(pendingLink)
+        }
         if let uri = composeState.linkPreview?.uri.absoluteString {
             cancelledLinks.insert(uri)
         }

apps/ios/Shared/Views/Chat/Group/GroupChatInfoView.swift

@@ -370,7 +370,11 @@ struct GroupChatInfoView: View {
 
     private func addOrEditWelcomeMessage() -> some View {
         NavigationLink {
-            GroupWelcomeView(groupId: groupInfo.groupId, groupInfo: $groupInfo)
+            GroupWelcomeView(
+                groupInfo: $groupInfo,
+                groupProfile: groupInfo.groupProfile,
+                welcomeText: groupInfo.groupProfile.description ?? ""
+            )
             .navigationTitle("Welcome message")
             .navigationBarTitleDisplayMode(.large)
         } label: {

apps/ios/Shared/Views/Chat/Group/GroupWelcomeView.swift

@@ -11,29 +11,32 @@ import SimpleXChat
 
 struct GroupWelcomeView: View {
     @Environment(\.dismiss) var dismiss: DismissAction
-    @EnvironmentObject private var m: ChatModel
-    var groupId: Int64
     @Binding var groupInfo: GroupInfo
-    @State private var welcomeText: String = ""
+    @State var groupProfile: GroupProfile
+    @State var welcomeText: String
     @State private var editMode = true
     @FocusState private var keyboardVisible: Bool
     @State private var showSaveDialog = false
 
+    let maxByteCount = 1200
+
     var body: some View {
         VStack {
             if groupInfo.canEdit {
                 editorView()
                     .modifier(BackButton {
-                        if welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil) {
+                        if welcomeTextUnchanged() {
                             dismiss()
                         } else {
                             showSaveDialog = true
                         }
                     })
-                    .confirmationDialog("Save welcome message?", isPresented: $showSaveDialog) {
-                        Button("Save and update group profile") {
-                            save()
-                            dismiss()
+                    .confirmationDialog(
+                        welcomeTextFitsLimit() ? "Save welcome message?" : "Welcome message is too long",
+                        isPresented: $showSaveDialog
+                    ) {
+                        if welcomeTextFitsLimit() {
+                            Button("Save and update group profile") { save() }
                         }
                         Button("Exit without saving") { dismiss() }
                     }
@@ -47,14 +50,15 @@ struct GroupWelcomeView: View {
             }
         }
         .onAppear {
-            welcomeText = groupInfo.groupProfile.description ?? ""
-            keyboardVisible = true
+            DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
+                keyboardVisible = true
+            }
         }
     }
 
     private func textPreview() -> some View {
         messageText(welcomeText, parseSimpleXMarkdown(welcomeText), nil, showSecrets: false)
-            .frame(minHeight: 140, alignment: .topLeading)
+            .frame(minHeight: 130, alignment: .topLeading)
             .frame(maxWidth: .infinity, alignment: .leading)
     }
 
@@ -74,7 +78,7 @@ struct GroupWelcomeView: View {
                         }
                         .padding(.horizontal, -5)
                         .padding(.top, -8)
-                        .frame(height: 140, alignment: .topLeading)
+                        .frame(height: 130, alignment: .topLeading)
                         .frame(maxWidth: .infinity, alignment: .leading)
                     }
                 } else {
@@ -93,6 +97,9 @@ struct GroupWelcomeView: View {
                 }
                 .disabled(welcomeText.isEmpty)
                 copyButton()
+            } footer: {
+                Text(!welcomeTextFitsLimit() ? "Message too large" : "")
+                    .foregroundColor(.red)
             }
 
             Section {
@@ -113,7 +120,15 @@ struct GroupWelcomeView: View {
         Button("Save and update group profile") {
             save()
         }
-        .disabled(welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil))
+        .disabled(welcomeTextUnchanged() || !welcomeTextFitsLimit())
+    }
+
+    private func welcomeTextUnchanged() -> Bool {
+        welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil)
+    }
+
+    private func welcomeTextFitsLimit() -> Bool {
+        chatJsonLength(welcomeText) <= maxByteCount
     }
 
     private func save() {
@@ -123,11 +138,13 @@ struct GroupWelcomeView: View {
                 if welcome?.count == 0 {
                     welcome = nil
                 }
-                var groupProfileUpdated = groupInfo.groupProfile
-                groupProfileUpdated.description = welcome
-                groupInfo = try await apiUpdateGroup(groupId, groupProfileUpdated)
-                m.updateGroup(groupInfo)
-                welcomeText = welcome ?? ""
+                groupProfile.description = welcome
+                let gInfo = try await apiUpdateGroup(groupInfo.groupId, groupProfile)
+                await MainActor.run {
+                    groupInfo = gInfo
+                    ChatModel.shared.updateGroup(gInfo)
+                    dismiss()
+                }
             } catch let error {
                 logger.error("apiUpdateGroup error: \(responseError(error))")
             }
@@ -137,6 +154,6 @@ struct GroupWelcomeView: View {
 
 struct GroupWelcomeView_Previews: PreviewProvider {
     static var previews: some View {
-        GroupWelcomeView(groupId: 1, groupInfo: Binding.constant(GroupInfo.sampleData))
+        GroupProfileView(groupInfo: Binding.constant(GroupInfo.sampleData), groupProfile: GroupProfile.sampleData)
     }
 }

apps/ios/Shared/Views/UserSettings/DeveloperView.swift

@@ -42,25 +42,6 @@ struct DeveloperView: View {
                 } footer: {
                     (developerTools ? Text("Show:") : Text("Hide:")) + Text(" ") + Text("Database IDs and Transport isolation option.")
                 }
-
-//                Section {
-//                    settingsRow("arrow.up.doc") {
-//                        Toggle("Send videos and files via XFTP", isOn: $xftpSendEnabled)
-//                            .onChange(of: xftpSendEnabled) { _ in
-//                                do {
-//                                    try setXFTPConfig(getXFTPCfg())
-//                                } catch {
-//                                    logger.error("setXFTPConfig: cannot set XFTP config \(responseError(error))")
-//                                }
-//                            }
-//                    }
-//                } header: {
-//                    Text("Experimental")
-//                } footer: {
-//                    if xftpSendEnabled {
-//                        Text("v4.6.1+ is required to receive via XFTP.")
-//                    }
-//                }
             }
         }
     }

apps/ios/SimpleX NSE/NotificationService.swift

@@ -453,7 +453,6 @@ var receiverStarted = false
 let startLock = DispatchSemaphore(value: 1)
 let suspendLock = DispatchSemaphore(value: 1)
 var networkConfig: NetCfg = getNetCfg()
-let xftpConfig: XFTPFileConfig? = getXFTPCfg()
 
 // startChat uses semaphore startLock to ensure that only one didReceive thread can start chat controller
 // Subsequent calls to didReceive will be waiting on semaphore and won't start chat again, as it will be .active
@@ -499,7 +498,6 @@ func doStartChat() -> DBMigrationResult? {
             try setNetworkConfig(networkConfig)
             try apiSetTempFolder(tempFolder: getTempFilesDirectory().path)
             try apiSetFilesFolder(filesFolder: getAppFilesDirectory().path)
-            try setXFTPConfig(xftpConfig)
             try apiSetEncryptLocalFiles(privacyEncryptLocalFilesGroupDefault.get())
             // prevent suspension while starting chat
             suspendLock.wait()
@@ -733,12 +731,6 @@ func apiSetFilesFolder(filesFolder: String) throws {
     throw r
 }
 
-func setXFTPConfig(_ cfg: XFTPFileConfig?) throws {
-    let r = sendSimpleXCmd(.apiSetXFTPConfig(config: cfg))
-    if case .cmdOk = r { return }
-    throw r
-}
-
 func apiSetEncryptLocalFiles(_ enable: Bool) throws {
     let r = sendSimpleXCmd(.apiSetEncryptLocalFiles(enable: enable))
     if case .cmdOk = r { return }

apps/ios/SimpleX.xcodeproj/project.pbxproj

@@ -61,11 +61,6 @@
 		5C7505A527B679EE00BE3227 /* NavLinkPlain.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7505A427B679EE00BE3227 /* NavLinkPlain.swift */; };
 		5C7505A827B6D34800BE3227 /* ChatInfoToolbar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7505A727B6D34800BE3227 /* ChatInfoToolbar.swift */; };
 		5C764E89279CBCB3000C6508 /* ChatModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C764E88279CBCB3000C6508 /* ChatModel.swift */; };
-		5C83A1AD2B5EF67D00AE0A4A /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1A82B5EF67D00AE0A4A /* libgmp.a */; };
-		5C83A1AE2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */; };
-		5C83A1AF2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */; };
-		5C83A1B02B5EF67D00AE0A4A /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AB2B5EF67D00AE0A4A /* libffi.a */; };
-		5C83A1B12B5EF67D00AE0A4A /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */; };
 		5C8F01CD27A6F0D8007D2C8D /* CodeScanner in Frameworks */ = {isa = PBXBuildFile; productRef = 5C8F01CC27A6F0D8007D2C8D /* CodeScanner */; };
 		5C93292F29239A170090FFF9 /* ProtocolServersView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C93292E29239A170090FFF9 /* ProtocolServersView.swift */; };
 		5C93293129239BED0090FFF9 /* ProtocolServerView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C93293029239BED0090FFF9 /* ProtocolServerView.swift */; };
@@ -95,6 +90,11 @@
 		5CB0BA90282713D900B3292C /* SimpleXInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB0BA8F282713D900B3292C /* SimpleXInfo.swift */; };
 		5CB0BA92282713FD00B3292C /* CreateProfile.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB0BA91282713FD00B3292C /* CreateProfile.swift */; };
 		5CB0BA9A2827FD8800B3292C /* HowItWorks.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB0BA992827FD8800B3292C /* HowItWorks.swift */; };
+		5CB1CE922B86660100963938 /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CB1CE8D2B86660100963938 /* libgmp.a */; };
+		5CB1CE932B86660100963938 /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CB1CE8E2B86660100963938 /* libgmpxx.a */; };
+		5CB1CE942B86660100963938 /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CB1CE8F2B86660100963938 /* libffi.a */; };
+		5CB1CE952B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CB1CE902B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a */; };
+		5CB1CE962B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CB1CE912B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a */; };
 		5CB2084F28DA4B4800D024EC /* RTCServers.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB2084E28DA4B4800D024EC /* RTCServers.swift */; };
 		5CB346E52868AA7F001FD2EF /* SuspendChat.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB346E42868AA7F001FD2EF /* SuspendChat.swift */; };
 		5CB346E72868D76D001FD2EF /* NotificationsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CB346E62868D76D001FD2EF /* NotificationsView.swift */; };
@@ -325,11 +325,6 @@
 		5C7505A427B679EE00BE3227 /* NavLinkPlain.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NavLinkPlain.swift; sourceTree = "<group>"; };
 		5C7505A727B6D34800BE3227 /* ChatInfoToolbar.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatInfoToolbar.swift; sourceTree = "<group>"; };
 		5C764E88279CBCB3000C6508 /* ChatModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatModel.swift; sourceTree = "<group>"; };
-		5C83A1A82B5EF67D00AE0A4A /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
-		5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a"; sourceTree = "<group>"; };
-		5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a"; sourceTree = "<group>"; };
-		5C83A1AB2B5EF67D00AE0A4A /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
-		5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
 		5C84FE9129A216C800D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/Localizable.strings; sourceTree = "<group>"; };
 		5C84FE9329A2179C00D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = "nl.lproj/SimpleX--iOS--InfoPlist.strings"; sourceTree = "<group>"; };
 		5C84FE9429A2179C00D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/InfoPlist.strings; sourceTree = "<group>"; };
@@ -377,6 +372,11 @@
 		5CB0BA8F282713D900B3292C /* SimpleXInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SimpleXInfo.swift; sourceTree = "<group>"; };
 		5CB0BA91282713FD00B3292C /* CreateProfile.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CreateProfile.swift; sourceTree = "<group>"; };
 		5CB0BA992827FD8800B3292C /* HowItWorks.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HowItWorks.swift; sourceTree = "<group>"; };
+		5CB1CE8D2B86660100963938 /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
+		5CB1CE8E2B86660100963938 /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
+		5CB1CE8F2B86660100963938 /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
+		5CB1CE902B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a"; sourceTree = "<group>"; };
+		5CB1CE912B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a"; sourceTree = "<group>"; };
 		5CB2084E28DA4B4800D024EC /* RTCServers.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RTCServers.swift; sourceTree = "<group>"; };
 		5CB2085428DE647400D024EC /* de */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = de; path = de.lproj/Localizable.strings; sourceTree = "<group>"; };
 		5CB346E42868AA7F001FD2EF /* SuspendChat.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SuspendChat.swift; sourceTree = "<group>"; };
@@ -514,13 +514,13 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				5CB1CE932B86660100963938 /* libgmpxx.a in Frameworks */,
 				5CE2BA93284534B000EC33A6 /* libiconv.tbd in Frameworks */,
-				5C83A1B02B5EF67D00AE0A4A /* libffi.a in Frameworks */,
-				5C83A1AD2B5EF67D00AE0A4A /* libgmp.a in Frameworks */,
-				5C83A1AE2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a in Frameworks */,
-				5C83A1AF2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a in Frameworks */,
+				5CB1CE962B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a in Frameworks */,
+				5CB1CE922B86660100963938 /* libgmp.a in Frameworks */,
+				5CB1CE952B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a in Frameworks */,
+				5CB1CE942B86660100963938 /* libffi.a in Frameworks */,
 				5CE2BA94284534BB00EC33A6 /* libz.tbd in Frameworks */,
-				5C83A1B12B5EF67D00AE0A4A /* libgmpxx.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -582,11 +582,11 @@
 		5C764E5C279C70B7000C6508 /* Libraries */ = {
 			isa = PBXGroup;
 			children = (
-				5C83A1AB2B5EF67D00AE0A4A /* libffi.a */,
-				5C83A1A82B5EF67D00AE0A4A /* libgmp.a */,
-				5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */,
-				5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */,
-				5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */,
+				5CB1CE8F2B86660100963938 /* libffi.a */,
+				5CB1CE8D2B86660100963938 /* libgmp.a */,
+				5CB1CE8E2B86660100963938 /* libgmpxx.a */,
+				5CB1CE902B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV-ghc9.6.3.a */,
+				5CB1CE912B86660100963938 /* libHSsimplex-chat-5.5.5.0-7lQXtpK7ThcLvpQEItJUcV.a */,
 			);
 			path = Libraries;
 			sourceTree = "<group>";
@@ -1509,7 +1509,7 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				ENABLE_PREVIEWS = YES;
@@ -1531,7 +1531,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
 				PRODUCT_NAME = SimpleX;
 				SDKROOT = iphoneos;
@@ -1552,7 +1552,7 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				ENABLE_PREVIEWS = YES;
@@ -1574,7 +1574,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
 				PRODUCT_NAME = SimpleX;
 				SDKROOT = iphoneos;
@@ -1633,7 +1633,7 @@
 				CODE_SIGN_ENTITLEMENTS = "SimpleX NSE/SimpleX NSE.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -1646,7 +1646,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = "chat.simplex.app.SimpleX-NSE";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1665,7 +1665,7 @@
 				CODE_SIGN_ENTITLEMENTS = "SimpleX NSE/SimpleX NSE.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -1678,7 +1678,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = "chat.simplex.app.SimpleX-NSE";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1697,7 +1697,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1721,7 +1721,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Libraries/sim",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.SimpleXChat;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SDKROOT = iphoneos;
@@ -1743,7 +1743,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 200;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1767,7 +1767,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Libraries/sim",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.5;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.SimpleXChat;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SDKROOT = iphoneos;

apps/ios/SimpleXChat/API.swift

@@ -105,6 +105,11 @@ public func parseSimpleXMarkdown(_ s: String) -> [FormattedText]? {
     return nil
 }
 
+public func chatJsonLength(_ s: String) -> Int {
+    var c = s.cString(using: .utf8)!
+    return Int(chat_json_length(&c))
+}
+
 struct ParsedMarkdown: Decodable {
     var formattedText: [FormattedText]?
 }

apps/ios/SimpleXChat/APITypes.swift

@@ -31,7 +31,6 @@ public enum ChatCommand {
     case apiSuspendChat(timeoutMicroseconds: Int)
     case setTempFolder(tempFolder: String)
     case setFilesFolder(filesFolder: String)
-    case apiSetXFTPConfig(config: XFTPFileConfig?)
     case apiSetEncryptLocalFiles(enable: Bool)
     case apiExportArchive(config: ArchiveConfig)
     case apiImportArchive(config: ArchiveConfig)
@@ -162,11 +161,6 @@ public enum ChatCommand {
             case let .apiSuspendChat(timeoutMicroseconds): return "/_app suspend \(timeoutMicroseconds)"
             case let .setTempFolder(tempFolder): return "/_temp_folder \(tempFolder)"
             case let .setFilesFolder(filesFolder): return "/_files_folder \(filesFolder)"
-            case let .apiSetXFTPConfig(cfg): if let cfg = cfg {
-                return "/_xftp on \(encodeJSON(cfg))"
-            } else {
-                return "/_xftp off"
-            }
             case let .apiSetEncryptLocalFiles(enable): return "/_files_encrypt \(onOff(enable))"
             case let .apiExportArchive(cfg): return "/_db export \(encodeJSON(cfg))"
             case let .apiImportArchive(cfg): return "/_db import \(encodeJSON(cfg))"
@@ -311,7 +305,6 @@ public enum ChatCommand {
             case .apiSuspendChat: return "apiSuspendChat"
             case .setTempFolder: return "setTempFolder"
             case .setFilesFolder: return "setFilesFolder"
-            case .apiSetXFTPConfig: return "apiSetXFTPConfig"
             case .apiSetEncryptLocalFiles: return "apiSetEncryptLocalFiles"
             case .apiExportArchive: return "apiExportArchive"
             case .apiImportArchive: return "apiImportArchive"
@@ -1005,10 +998,6 @@ struct ComposedMessage: Encodable {
     var msgContent: MsgContent
 }
 
-public struct XFTPFileConfig: Encodable {
-    var minFileSize: Int64
-}
-
 public struct ArchiveConfig: Encodable {
     var archivePath: String
     var disableCompression: Bool?

apps/ios/SimpleXChat/AppGroup.swift

@@ -265,10 +265,6 @@ public class Default<T> {
     }
 }
 
-public func getXFTPCfg() -> XFTPFileConfig {
-    return XFTPFileConfig(minFileSize: 0)
-}
-
 public func getNetCfg() -> NetCfg {
     let onionHosts = networkUseOnionHostsGroupDefault.get()
     let (hostMode, requiredHostMode) = onionHosts.hostMode

apps/ios/SimpleXChat/SimpleX.h

@@ -25,6 +25,7 @@ extern char *chat_parse_markdown(char *str);
 extern char *chat_parse_server(char *str);
 extern char *chat_password_hash(char *pwd, char *salt);
 extern char *chat_valid_name(char *name);
+extern int chat_json_length(char *str);
 extern char *chat_encrypt_media(chat_ctrl ctl, char *key, char *frame, int len);
 extern char *chat_decrypt_media(char *key, char *frame, int len);
 

apps/multiplatform/android/src/main/java/chat/simplex/app/MainActivity.kt

@@ -1,11 +1,12 @@
 package chat.simplex.app
 
+import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.*
 import android.view.WindowManager
 import androidx.activity.compose.setContent
-import androidx.appcompat.app.AppCompatDelegate
+import androidx.compose.ui.platform.ClipboardManager
 import androidx.fragment.app.FragmentActivity
 import chat.simplex.app.model.NtfManager
 import chat.simplex.app.model.NtfManager.getUserIdFromIntent
@@ -58,6 +59,17 @@ class MainActivity: FragmentActivity() {
   override fun onResume() {
     super.onResume()
     AppLock.recheckAuthState()
+    withApi {
+      delay(1000)
+      if (!isAppOnForeground) return@withApi
+      /**
+       * When the app calls [ClipboardManager.shareText] and a user copies text in clipboard, Android denies
+       * access to clipboard because the app considered in background.
+       * This will ensure that the app will get the event on resume
+       * */
+      val service = getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
+      chatModel.clipboardHasText.value = service.hasPrimaryClip()
+    }
   }
 
   override fun onPause() {

apps/multiplatform/android/src/main/java/chat/simplex/app/SimplexApp.kt

@@ -71,7 +71,7 @@ class SimplexApp: Application(), LifecycleEventObserver {
 
   override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
     Log.d(TAG, "onStateChanged: $event")
-    withBGApi {
+    withLongRunningApi {
       when (event) {
         Lifecycle.Event.ON_START -> {
           isAppOnForeground = true
@@ -97,13 +97,6 @@ class SimplexApp: Application(), LifecycleEventObserver {
         }
         Lifecycle.Event.ON_RESUME -> {
           isAppOnForeground = true
-          /**
-           * When the app calls [ClipboardManager.shareText] and a user copies text in clipboard, Android denies
-           * access to clipboard because the app considered in background.
-           * This will ensure that the app will get the event on resume
-           * */
-          val service = androidAppContext.getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
-          chatModel.clipboardHasText.value = service.hasPrimaryClip()
           if (chatModel.controller.appPrefs.onboardingStage.get() == OnboardingStage.OnboardingComplete && chatModel.currentUser.value != null) {
             SimplexService.showBackgroundServiceNoticeIfNeeded()
           }
@@ -197,10 +190,18 @@ class SimplexApp: Application(), LifecycleEventObserver {
         }
         SimplexService.StartReceiver.toggleReceiver(mode == NotificationsMode.SERVICE)
         CoroutineScope(Dispatchers.Default).launch {
-          if (mode == NotificationsMode.SERVICE)
+          if (mode == NotificationsMode.SERVICE) {
             SimplexService.start()
-          else
+            // Sometimes, when we change modes fast from one to another, system destroys the service after start.
+            // We can wait a little and restart the service, and it will work in 100% of cases
+            delay(2000)
+            if (!SimplexService.isServiceStarted && appPrefs.notificationsMode.get() == NotificationsMode.SERVICE) {
+              Log.i(TAG, "Service tried to start but destroyed by system, repeating once more")
+              SimplexService.start()
+            }
+          } else {
             SimplexService.safeStopService()
+          }
         }
 
         if (mode != NotificationsMode.PERIODIC) {

apps/multiplatform/android/src/main/java/chat/simplex/app/SimplexService.kt

@@ -104,7 +104,7 @@ class SimplexService: Service() {
     if (wakeLock != null || isStartingService) return
     val self = this
     isStartingService = true
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi {
       val chatController = ChatController
       waitDbMigrationEnds(chatController)
       try {
@@ -262,7 +262,7 @@ class SimplexService: Service() {
     private const val SHARED_PREFS_SERVICE_STATE = "SIMPLEX_SERVICE_STATE"
     private const val WORK_NAME_ONCE = "ServiceStartWorkerOnce"
 
-    private var isServiceStarted = false
+    var isServiceStarted = false
     private var stopAfterStart = false
 
     fun scheduleStart(context: Context) {

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/Share.android.kt

@@ -14,17 +14,27 @@ import chat.simplex.common.views.helpers.*
 import java.io.BufferedOutputStream
 import java.io.File
 import chat.simplex.res.MR
+import kotlin.math.min
 
 actual fun ClipboardManager.shareText(text: String) {
-  val sendIntent: Intent = Intent().apply {
-    action = Intent.ACTION_SEND
-    putExtra(Intent.EXTRA_TEXT, text)
-    type = "text/plain"
-    flags = FLAG_ACTIVITY_NEW_TASK
+  var text = text
+  for (i in 10 downTo 1) {
+    try {
+      val sendIntent: Intent = Intent().apply {
+        action = Intent.ACTION_SEND
+        putExtra(Intent.EXTRA_TEXT, text)
+        type = "text/plain"
+        flags = FLAG_ACTIVITY_NEW_TASK
+      }
+      val shareIntent = Intent.createChooser(sendIntent, null)
+      shareIntent.addFlags(FLAG_ACTIVITY_NEW_TASK)
+      androidAppContext.startActivity(shareIntent)
+      break
+    } catch (e: Exception) {
+      Log.e(TAG, "Failed to share text: ${e.stackTraceToString()}")
+      text = text.substring(0, min(i * 1000, text.length))
+    }
   }
-  val shareIntent = Intent.createChooser(sendIntent, null)
-  shareIntent.addFlags(FLAG_ACTIVITY_NEW_TASK)
-  androidAppContext.startActivity(shareIntent)
 }
 
 actual fun shareFile(text: String, fileSource: CryptoFile) {

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/UI.android.kt

@@ -12,6 +12,8 @@ import androidx.activity.compose.setContent
 import androidx.compose.runtime.*
 import androidx.compose.ui.platform.LocalView
 import chat.simplex.common.AppScreen
+import chat.simplex.common.model.clear
+import chat.simplex.common.ui.theme.SimpleXTheme
 import chat.simplex.common.views.helpers.*
 import androidx.compose.ui.platform.LocalContext as LocalContext1
 import chat.simplex.res.MR
@@ -112,7 +114,8 @@ actual class GlobalExceptionsHandler: Thread.UncaughtExceptionHandler {
     Handler(Looper.getMainLooper()).post {
       AlertManager.shared.showAlertMsg(
         title = generalGetString(MR.strings.app_was_crashed),
-        text = e.stackTraceToString()
+        text = e.stackTraceToString(),
+        shareText = true
       )
     }
   }

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/views/helpers/CustomTimePicker.android.kt

@@ -0,0 +1,106 @@
+package chat.simplex.common.views.helpers
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.common.model.CustomTimeUnit
+import chat.simplex.common.ui.theme.DEFAULT_PADDING
+import com.sd.lib.compose.wheel_picker.*
+
+@Composable
+actual fun CustomTimePicker(
+  selection: MutableState<Int>,
+  timeUnitsLimits: List<TimeUnitLimits>
+) {
+  fun getUnitValues(unit: CustomTimeUnit, selectedValue: Int): List<Int> {
+    val unitLimits = timeUnitsLimits.firstOrNull { it.timeUnit == unit } ?: TimeUnitLimits.defaultUnitLimits(unit)
+    val regularUnitValues = (unitLimits.minValue..unitLimits.maxValue).toList()
+    return regularUnitValues + if (regularUnitValues.contains(selectedValue)) emptyList() else listOf(selectedValue)
+  }
+
+  val (unit, duration) = CustomTimeUnit.toTimeUnit(selection.value)
+  val selectedUnit: MutableState<CustomTimeUnit> = remember { mutableStateOf(unit) }
+  val selectedDuration = remember { mutableStateOf(duration) }
+  val selectedUnitValues = remember { mutableStateOf(getUnitValues(selectedUnit.value, selectedDuration.value)) }
+  val isTriggered = remember { mutableStateOf(false) }
+
+  LaunchedEffect(selectedUnit.value) {
+    // on initial composition, if passed selection doesn't fit into picker bounds, so that selectedDuration is bigger than selectedUnit maxValue
+    // (e.g., for selection = 121 seconds: selectedUnit would be Second, selectedDuration would be 121 > selectedUnit maxValue of 120),
+    // selectedDuration would've been replaced by maxValue - isTriggered check prevents this by skipping LaunchedEffect on initial composition
+    if (isTriggered.value) {
+      val maxValue = timeUnitsLimits.firstOrNull { it.timeUnit == selectedUnit.value }?.maxValue
+      if (maxValue != null && selectedDuration.value > maxValue) {
+        selectedDuration.value = maxValue
+        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
+      } else {
+        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
+        selection.value = selectedUnit.value.toSeconds * selectedDuration.value
+      }
+    } else {
+      isTriggered.value = true
+    }
+  }
+
+  LaunchedEffect(selectedDuration.value) {
+    selection.value = selectedUnit.value.toSeconds * selectedDuration.value
+  }
+
+  Row(
+    Modifier
+      .fillMaxWidth()
+      .padding(horizontal = DEFAULT_PADDING),
+    horizontalArrangement = Arrangement.spacedBy(0.dp)
+  ) {
+    Column(Modifier.weight(1f)) {
+      val durationPickerState = rememberFWheelPickerState(selectedUnitValues.value.indexOf(selectedDuration.value))
+      FVerticalWheelPicker(
+        count = selectedUnitValues.value.count(),
+        state = durationPickerState,
+        unfocusedCount = 2,
+        focus = {
+          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
+        }
+      ) { index ->
+        Text(
+          selectedUnitValues.value[index].toString(),
+          fontSize = 18.sp,
+          color = MaterialTheme.colors.primary
+        )
+      }
+      LaunchedEffect(durationPickerState) {
+        snapshotFlow { durationPickerState.currentIndex }
+          .collect {
+            selectedDuration.value = selectedUnitValues.value[it]
+          }
+      }
+    }
+    Column(Modifier.weight(1f)) {
+      val unitPickerState = rememberFWheelPickerState(timeUnitsLimits.indexOfFirst { it.timeUnit == selectedUnit.value })
+      FVerticalWheelPicker(
+        count = timeUnitsLimits.count(),
+        state = unitPickerState,
+        unfocusedCount = 2,
+        focus = {
+          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
+        }
+      ) { index ->
+        Text(
+          timeUnitsLimits[index].timeUnit.text,
+          fontSize = 18.sp,
+          color = MaterialTheme.colors.primary
+        )
+      }
+      LaunchedEffect(unitPickerState) {
+        snapshotFlow { unitPickerState.currentIndex }
+          .collect {
+            selectedUnit.value = timeUnitsLimits[it].timeUnit
+          }
+      }
+    }
+  }
+}

apps/multiplatform/common/src/commonMain/cpp/android/simplex-api.c

@@ -66,6 +66,7 @@ extern char *chat_parse_markdown(const char *str);
 extern char *chat_parse_server(const char *str);
 extern char *chat_password_hash(const char *pwd, const char *salt);
 extern char *chat_valid_name(const char *name);
+extern int chat_json_length(const char *str);
 extern char *chat_write_file(chat_ctrl ctrl, const char *path, char *ptr, int length);
 extern char *chat_read_file(const char *path, const char *key, const char *nonce);
 extern char *chat_encrypt_file(chat_ctrl ctrl, const char *from_path, const char *to_path);
@@ -163,6 +164,14 @@ Java_chat_simplex_common_platform_CoreKt_chatValidName(JNIEnv *env, jclass clazz
     return res;
 }
 
+JNIEXPORT int JNICALL
+Java_chat_simplex_common_platform_CoreKt_chatJsonLength(JNIEnv *env, jclass clazz, jstring str) {
+    const char *_str = (*env)->GetStringUTFChars(env, str, JNI_FALSE);
+    int res = chat_json_length(_str);
+    (*env)->ReleaseStringUTFChars(env, str, _str);
+    return res;
+}
+
 JNIEXPORT jstring JNICALL
 Java_chat_simplex_common_platform_CoreKt_chatWriteFile(JNIEnv *env, jclass clazz, jlong controller, jstring path, jobject buffer) {
     const char *_path = (*env)->GetStringUTFChars(env, path, JNI_FALSE);

apps/multiplatform/common/src/commonMain/cpp/desktop/simplex-api.c

@@ -39,6 +39,7 @@ extern char *chat_parse_markdown(const char *str);
 extern char *chat_parse_server(const char *str);
 extern char *chat_password_hash(const char *pwd, const char *salt);
 extern char *chat_valid_name(const char *name);
+extern int chat_json_length(const char *str);
 extern char *chat_write_file(chat_ctrl ctrl, const char *path, char *ptr, int length);
 extern char *chat_read_file(const char *path, const char *key, const char *nonce);
 extern char *chat_encrypt_file(chat_ctrl ctrl, const char *from_path, const char *to_path);
@@ -173,6 +174,14 @@ Java_chat_simplex_common_platform_CoreKt_chatValidName(JNIEnv *env, jclass clazz
     return res;
 }
 
+JNIEXPORT int JNICALL
+Java_chat_simplex_common_platform_CoreKt_chatJsonLength(JNIEnv *env, jclass clazz, jstring str) {
+    const char *_str = encode_to_utf8_chars(env, str);
+    int res = chat_json_length(_str);
+    (*env)->ReleaseStringUTFChars(env, str, _str);
+    return res;
+}
+
 JNIEXPORT jstring JNICALL
 Java_chat_simplex_common_platform_CoreKt_chatWriteFile(JNIEnv *env, jclass clazz, jlong controller, jstring path, jobject buffer) {
     const char *_path = encode_to_utf8_chars(env, path);

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/App.kt

@@ -108,6 +108,7 @@ fun MainScreen() {
     val localUserCreated = chatModel.localUserCreated.value
     var showInitializationView by remember { mutableStateOf(false) }
     when {
+      chatModel.dbMigrationInProgress.value -> DefaultProgressView(stringResource(MR.strings.database_migration_in_progress))
       chatModel.chatDbStatus.value == null && showInitializationView -> DefaultProgressView(stringResource(MR.strings.opening_database))
       showChatDatabaseError -> {
         // Prevent showing keyboard on Android when: passcode enabled and database password not saved

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/ChatModel.kt

@@ -2,6 +2,7 @@ package chat.simplex.common.model
 
 import androidx.compose.material.*
 import androidx.compose.runtime.*
+import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.compose.runtime.snapshots.SnapshotStateMap
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.SpanStyle
@@ -48,6 +49,7 @@ object ChatModel {
   val chatDbEncrypted = mutableStateOf<Boolean?>(false)
   val chatDbStatus = mutableStateOf<DBMigrationResult?>(null)
   val ctrlInitInProgress = mutableStateOf(false)
+  val dbMigrationInProgress = mutableStateOf(false)
   val chats = mutableStateListOf<Chat>()
   // map of connections network statuses, key is agent connection id
   val networkStatuses = mutableStateMapOf<String, NetworkStatus>()
@@ -55,7 +57,7 @@ object ChatModel {
 
   // current chat
   val chatId = mutableStateOf<String?>(null)
-  val chatItems = mutableStateListOf<ChatItem>()
+  val chatItems = mutableStateOf(SnapshotStateList<ChatItem>())
   // rhId, chatId
   val deletedChats = mutableStateOf<List<Pair<Long?, String>>>(emptyList())
   val chatItemStatuses = mutableMapOf<Long, CIStatus>()
@@ -63,8 +65,6 @@ object ChatModel {
 
   val terminalItems = mutableStateOf<List<TerminalItem>>(listOf())
   val userAddress = mutableStateOf<UserContactLinkRec?>(null)
-  // Allows to temporary save servers that are being edited on multiple screens
-  val userSMPServersUnsaved = mutableStateOf<(List<ServerCfg>)?>(null)
   val chatItemTTL = mutableStateOf<ChatItemTTL>(ChatItemTTL.None)
 
   // set when app opened from external intent
@@ -269,18 +269,15 @@ object ChatModel {
     } else {
       addChat(Chat(remoteHostId = rhId, chatInfo = cInfo, chatItems = arrayListOf(cItem)))
     }
-    Log.d(TAG, "TODOCHAT: addChatItem: adding to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
     withContext(Dispatchers.Main) {
       // add to current chat
       if (chatId.value == cInfo.id) {
-        Log.d(TAG, "TODOCHAT: addChatItem: chatIds are equal, size ${chatItems.size}")
         // Prevent situation when chat item already in the list received from backend
-        if (chatItems.none { it.id == cItem.id }) {
-          if (chatItems.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
-            chatItems.add(kotlin.math.max(0, chatItems.lastIndex), cItem)
+        if (chatItems.value.none { it.id == cItem.id }) {
+          if (chatItems.value.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
+            chatItems.add(kotlin.math.max(0, chatItems.value.lastIndex), cItem)
           } else {
             chatItems.add(cItem)
-            Log.d(TAG, "TODOCHAT: addChatItem: added to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
           }
         }
       }
@@ -307,14 +304,13 @@ object ChatModel {
       addChat(Chat(remoteHostId = rhId, chatInfo = cInfo, chatItems = arrayListOf(cItem)))
       res = true
     }
-    Log.d(TAG, "TODOCHAT: upsertChatItem: upserting to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
     return withContext(Dispatchers.Main) {
       // update current chat
       if (chatId.value == cInfo.id) {
-        val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
+        val items = chatItems.value
+        val itemIndex = items.indexOfFirst { it.id == cItem.id }
         if (itemIndex >= 0) {
-          chatItems[itemIndex] = cItem
-          Log.d(TAG, "TODOCHAT: upsertChatItem: updated in chat $chatId from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
+          items[itemIndex] = cItem
           false
         } else {
           val status = chatItemStatuses.remove(cItem.id)
@@ -324,7 +320,6 @@ object ChatModel {
             cItem
           }
           chatItems.add(ci)
-          Log.d(TAG, "TODOCHAT: upsertChatItem: added to chat $chatId from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
           true
         }
       } else {
@@ -336,9 +331,10 @@ object ChatModel {
   suspend fun updateChatItem(cInfo: ChatInfo, cItem: ChatItem, status: CIStatus? = null) {
     withContext(Dispatchers.Main) {
       if (chatId.value == cInfo.id) {
-        val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
+        val items = chatItems.value
+        val itemIndex = items.indexOfFirst { it.id == cItem.id }
         if (itemIndex >= 0) {
-          chatItems[itemIndex] = cItem
+          items[itemIndex] = cItem
         }
       } else if (status != null) {
         chatItemStatuses[cItem.id] = status
@@ -362,10 +358,10 @@ object ChatModel {
     }
     // remove from current chat
     if (chatId.value == cInfo.id) {
-      val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
-      if (itemIndex >= 0) {
-        AudioPlayer.stop(chatItems[itemIndex])
-        chatItems.removeAt(itemIndex)
+      chatItems.removeAll {
+        val remove = it.id == cItem.id
+        if (remove) { AudioPlayer.stop(it) }
+        remove
       }
     }
   }
@@ -406,7 +402,7 @@ object ChatModel {
   }
 
   fun removeLiveDummy() {
-    if (chatItems.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
+    if (chatItems.value.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
       chatItems.removeLast()
     }
   }
@@ -438,14 +434,14 @@ object ChatModel {
     var markedRead = 0
     if (chatId.value == cInfo.id) {
       var i = 0
-      Log.d(TAG, "TODOCHAT: markItemsReadInCurrentChat: marking read ${cInfo.id}, current chatId ${chatId.value}, size was ${chatItems.size}")
-      while (i < chatItems.count()) {
-        val item = chatItems[i]
+      val items = chatItems.value
+      while (i < items.size) {
+        val item = items[i]
         if (item.meta.itemStatus is CIStatus.RcvNew && (range == null || (range.from <= item.id && item.id <= range.to))) {
           val newItem = item.withStatus(CIStatus.RcvRead())
-          chatItems[i] = newItem
+          items[i] = newItem
           if (newItem.meta.itemLive != true && newItem.meta.itemTimed?.ttl != null) {
-            chatItems[i] = newItem.copy(meta = newItem.meta.copy(itemTimed = newItem.meta.itemTimed.copy(
+            items[i] = newItem.copy(meta = newItem.meta.copy(itemTimed = newItem.meta.itemTimed.copy(
               deleteAt = Clock.System.now() + newItem.meta.itemTimed.ttl.toDuration(DurationUnit.SECONDS)))
             )
           }
@@ -453,7 +449,6 @@ object ChatModel {
         }
         i += 1
       }
-      Log.d(TAG, "TODOCHAT: markItemsReadInCurrentChat: marked read ${cInfo.id}, current chatId ${chatId.value}, size now ${chatItems.size}")
     }
     return markedRead
   }
@@ -494,11 +489,10 @@ object ChatModel {
   }
 
   // this function analyses "connected" events and assumes that each member will be there only once
-  fun getConnectedMemberNames(cItem: ChatItem): Triple<Int, List<String>, String?> {
+  fun getConnectedMemberNames(cItem: ChatItem): Pair<Int, List<String>> {
     var count = 0
     val ns = mutableListOf<String>()
     var idx = getChatItemIndexOrNull(cItem)
-    var lastNonConnectedEvent: String? = null
     if (cItem.mergeCategory != null && idx != null) {
       val reversedChatItems = chatItems.asReversed()
       while (idx < reversedChatItems.size) {
@@ -507,14 +501,12 @@ object ChatModel {
         val m = ci.memberConnected
         if (m != null) {
           ns.add(m.displayName)
-        } else if (count == 0) {
-          lastNonConnectedEvent = if (ci.memberDisplayName != null) ci.memberDisplayName + " " + ci.text else ci.text
         }
         count++
         idx++
       }
     }
-    return Triple(count, ns, lastNonConnectedEvent)
+    return count to ns
   }
 
   // returns the index of the passed item and the next item (it has smaller index)
@@ -647,7 +639,8 @@ object ChatModel {
   }
 
   fun addTerminalItem(item: TerminalItem) {
-    if (terminalItems.value.size >= 500) {
+    val maxItems = if (appPreferences.developerTools.get()) 500 else 200
+    if (terminalItems.value.size >= maxItems) {
       terminalItems.value = terminalItems.value.subList(1, terminalItems.value.size)
     }
     terminalItems.value += item
@@ -2009,6 +2002,46 @@ data class ChatItem (
   }
 }
 
+fun MutableState<SnapshotStateList<ChatItem>>.add(index: Int, chatItem: ChatItem) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); add(index, chatItem) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.add(chatItem: ChatItem) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); add(chatItem) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.addAll(index: Int, chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); addAll(index, chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.addAll(chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); addAll(chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeAll(block: (ChatItem) -> Boolean) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeAll(block) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeAt(index: Int) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeAt(index) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeLast() {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeLast() }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.replaceAll(chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.clear() {
+  value = SnapshotStateList<ChatItem>()
+}
+
+fun State<SnapshotStateList<ChatItem>>.asReversed(): MutableList<ChatItem> = value.asReversed()
+
+val State<List<ChatItem>>.size: Int get() = value.size
+
 enum class CIMergeCategory {
   MemberConnected,
   RcvGroupEvent,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt

@@ -451,7 +451,21 @@ object ChatController {
         }
         try {
           val msg = recvMsg(ctrl)
-          if (msg != null) processReceivedMsg(msg)
+          if (msg != null) {
+            val finishedWithoutTimeout = withTimeoutOrNull(60_000L) {
+              processReceivedMsg(msg)
+            }
+            if (finishedWithoutTimeout == null) {
+              Log.e(TAG, "Timeout reached while processing received message: " + msg.resp.responseType)
+              if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
+                AlertManager.shared.showAlertMsg(
+                  title = generalGetString(MR.strings.possible_slow_function_title),
+                  text = generalGetString(MR.strings.possible_slow_function_desc).format(60, msg.resp.responseType + "\n" + Exception().stackTraceToString()),
+                  shareText = true
+                )
+              }
+            }
+          }
         } catch (e: Exception) {
           Log.e(TAG, "ChatController recvMsg/processReceivedMsg exception: " + e.stackTraceToString());
         } catch (e: Throwable) {
@@ -617,12 +631,6 @@ object ChatController {
     throw Error("failed to set remote hosts folder: ${r.responseType} ${r.details}")
   }
 
-  suspend fun apiSetXFTPConfig(cfg: XFTPFileConfig?) {
-    val r = sendCmd(null, CC.ApiSetXFTPConfig(cfg))
-    if (r is CR.CmdOk) return
-    throw Error("apiSetXFTPConfig bad response: ${r.responseType} ${r.details}")
-  }
-
   suspend fun apiSetEncryptLocalFiles(enable: Boolean) = sendCommandOkResp(null, CC.ApiSetEncryptLocalFiles(enable))
 
   suspend fun apiExportArchive(config: ArchiveConfig) {
@@ -1685,7 +1693,7 @@ object ChatController {
           chatModel.networkStatuses[s.agentConnId] = s.networkStatus
         }
       }
-      is CR.NewChatItem -> {
+      is CR.NewChatItem -> withBGApi {
         val cInfo = r.chatItem.chatInfo
         val cItem = r.chatItem.chatItem
         if (active(r.user)) {
@@ -1700,7 +1708,7 @@ object ChatController {
             ((mc is MsgContent.MCImage && file.fileSize <= MAX_IMAGE_SIZE_AUTO_RCV)
                 || (mc is MsgContent.MCVideo && file.fileSize <= MAX_VIDEO_SIZE_AUTO_RCV)
                 || (mc is MsgContent.MCVoice && file.fileSize <= MAX_VOICE_SIZE_AUTO_RCV && file.fileStatus !is CIFileStatus.RcvAccepted))) {
-          withBGApi { receiveFile(rhId, r.user, file.fileId, auto = true) }
+          receiveFile(rhId, r.user, file.fileId, auto = true)
         }
         if (cItem.showNotification && (allowedToShowNotification() || chatModel.chatId.value != cInfo.id || chatModel.remoteHostId() != rhId)) {
           ntfManager.notifyMessageReceived(r.user, cInfo, cItem)
@@ -2159,10 +2167,6 @@ object ChatController {
     }
   }
 
-  fun getXFTPCfg(): XFTPFileConfig {
-    return XFTPFileConfig(minFileSize = 0)
-  }
-
   fun getNetCfg(): NetCfg {
     val useSocksProxy = appPrefs.networkUseSocksProxy.get()
     val proxyHostPort  = appPrefs.networkProxyHostPort.get()
@@ -2271,7 +2275,6 @@ sealed class CC {
   class SetTempFolder(val tempFolder: String): CC()
   class SetFilesFolder(val filesFolder: String): CC()
   class SetRemoteHostsFolder(val remoteHostsFolder: String): CC()
-  class ApiSetXFTPConfig(val config: XFTPFileConfig?): CC()
   class ApiSetEncryptLocalFiles(val enable: Boolean): CC()
   class ApiExportArchive(val config: ArchiveConfig): CC()
   class ApiImportArchive(val config: ArchiveConfig): CC()
@@ -2401,7 +2404,6 @@ sealed class CC {
     is SetTempFolder -> "/_temp_folder $tempFolder"
     is SetFilesFolder -> "/_files_folder $filesFolder"
     is SetRemoteHostsFolder -> "/remote_hosts_folder $remoteHostsFolder"
-    is ApiSetXFTPConfig -> if (config != null) "/_xftp on ${json.encodeToString(config)}" else "/_xftp off"
     is ApiSetEncryptLocalFiles -> "/_files_encrypt ${onOff(enable)}"
     is ApiExportArchive -> "/_db export ${json.encodeToString(config)}"
     is ApiImportArchive -> "/_db import ${json.encodeToString(config)}"
@@ -2536,7 +2538,6 @@ sealed class CC {
     is SetTempFolder -> "setTempFolder"
     is SetFilesFolder -> "setFilesFolder"
     is SetRemoteHostsFolder -> "setRemoteHostsFolder"
-    is ApiSetXFTPConfig -> "apiSetXFTPConfig"
     is ApiSetEncryptLocalFiles -> "apiSetEncryptLocalFiles"
     is ApiExportArchive -> "apiExportArchive"
     is ApiImportArchive -> "apiImportArchive"
@@ -2702,9 +2703,6 @@ sealed class ChatPagination {
 @Serializable
 class ComposedMessage(val fileSource: CryptoFile?, val quotedItemId: Long?, val msgContent: MsgContent)
 
-@Serializable
-class XFTPFileConfig(val minFileSize: Long)
-
 @Serializable
 class ArchiveConfig(val archivePath: String, val disableCompression: Boolean? = null, val parentTempDirectory: String? = null)
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/Core.kt

@@ -28,6 +28,7 @@ external fun chatParseMarkdown(str: String): String
 external fun chatParseServer(str: String): String
 external fun chatPasswordHash(pwd: String, salt: String): String
 external fun chatValidName(name: String): String
+external fun chatJsonLength(str: String): Int
 external fun chatWriteFile(ctrl: ChatCtrl, path: String, buffer: ByteBuffer): String
 external fun chatReadFile(path: String, key: String, nonce: String): Array<Any>
 external fun chatEncryptFile(ctrl: ChatCtrl, fromPath: String, toPath: String): String
@@ -42,7 +43,7 @@ val appPreferences: AppPreferences
 val chatController: ChatController = ChatController
 
 fun initChatControllerAndRunMigrations() {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     if (appPreferences.chatStopped.get() && appPreferences.storeDBPassphrase.get() && ksDatabasePassword.get() != null) {
       initChatController(startChat = ::showStartChatAfterRestartAlert)
     } else {
@@ -58,10 +59,23 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     chatModel.ctrlInitInProgress.value = true
     val dbKey = useKey ?: DatabaseUtils.useDatabaseKey()
     val confirm = confirmMigrations ?: if (appPreferences.developerTools.get() && appPreferences.confirmDBUpgrades.get()) MigrationConfirmation.Error else MigrationConfirmation.YesUp
-    val migrated: Array<Any> = chatMigrateInit(dbAbsolutePrefixPath, dbKey, confirm.value)
-    val res: DBMigrationResult = kotlin.runCatching {
+    var migrated: Array<Any> = chatMigrateInit(dbAbsolutePrefixPath, dbKey, MigrationConfirmation.Error.value)
+    var res: DBMigrationResult = runCatching {
       json.decodeFromString<DBMigrationResult>(migrated[0] as String)
     }.getOrElse { DBMigrationResult.Unknown(migrated[0] as String) }
+    val rerunMigration = res is DBMigrationResult.ErrorMigration && when (res.migrationError) {
+      // we don't allow to run down migrations without confirmation in UI, so currently it won't be YesUpDown
+      is MigrationError.Upgrade -> confirm == MigrationConfirmation.YesUp || confirm == MigrationConfirmation.YesUpDown
+      is MigrationError.Downgrade ->  confirm == MigrationConfirmation.YesUpDown
+      is MigrationError.Error -> false
+    }
+    if (rerunMigration) {
+      chatModel.dbMigrationInProgress.value = true
+      migrated = chatMigrateInit(dbAbsolutePrefixPath, dbKey, confirm.value)
+      res = runCatching {
+        json.decodeFromString<DBMigrationResult>(migrated[0] as String)
+      }.getOrElse { DBMigrationResult.Unknown(migrated[0] as String) }
+    }
     val ctrl = if (res is DBMigrationResult.OK) {
       migrated[1] as Long
     } else null
@@ -77,7 +91,6 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     if (appPlatform.isDesktop) {
       controller.apiSetRemoteHostsFolder(remoteHostsDir.absolutePath)
     }
-    controller.apiSetXFTPConfig(controller.getXFTPCfg())
     controller.apiSetEncryptLocalFiles(controller.appPrefs.privacyEncryptLocalFiles.get())
     // If we migrated successfully means previous re-encryption process on database level finished successfully too
     if (appPreferences.encryptionStartedAt.get() != null) appPreferences.encryptionStartedAt.set(null)
@@ -119,6 +132,7 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     }
   } finally {
     chatModel.ctrlInitInProgress.value = false
+    chatModel.dbMigrationInProgress.value = false
   }
 }
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/NtfManager.kt

@@ -55,7 +55,7 @@ abstract class NtfManager {
   }
 
   fun openChatAction(userId: Long?, chatId: ChatId) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi {
       awaitChatStartedIfNeeded(chatModel)
       if (userId != null && userId != chatModel.currentUser.value?.userId && chatModel.currentUser.value != null) {
         // TODO include remote host ID in desktop notifications?
@@ -70,7 +70,7 @@ abstract class NtfManager {
   }
 
   fun showChatsAction(userId: Long?) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi {
       awaitChatStartedIfNeeded(chatModel)
       if (userId != null && userId != chatModel.currentUser.value?.userId && chatModel.currentUser.value != null) {
         // TODO include remote host ID in desktop notifications?

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatItemInfoView.kt

@@ -324,7 +324,7 @@ fun ChatItemInfoView(chatModel: ChatModel, ci: ChatItem, ciInfo: ChatItemInfo, d
           .fillMaxHeight(),
         verticalArrangement = Arrangement.SpaceBetween
       ) {
-        LaunchedEffect(Unit) {
+        LaunchedEffect(ciInfo) {
           if (ciInfo.memberDeliveryStatuses != null) {
             selection.value = CIInfoTab.Delivery(ciInfo.memberDeliveryStatuses)
           }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatView.kt

@@ -67,13 +67,13 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
     launch {
       snapshotFlow { chatModel.chatId.value }
         .distinctUntilChanged()
-        .onEach { Log.d(TAG, "TODOCHAT: chatId: activeChatId ${activeChat.value?.id} == new chatId $it ${activeChat.value?.id == it} ") }
-        .filter { it != null && activeChat.value?.id != it }
+        .filterNotNull()
         .collect { chatId ->
-          // Redisplay the whole hierarchy if the chat is different to make going from groups to direct chat working correctly
-          // Also for situation when chatId changes after clicking in notification, etc
-          activeChat.value = chatModel.getChat(chatId!!)
-          Log.d(TAG, "TODOCHAT: chatId: activeChatId became ${activeChat.value?.id}")
+          if (activeChat.value?.id != chatId) {
+            // Redisplay the whole hierarchy if the chat is different to make going from groups to direct chat working correctly
+            // Also for situation when chatId changes after clicking in notification, etc
+            activeChat.value = chatModel.getChat(chatId)
+          }
           markUnreadChatAsRead(activeChat, chatModel)
         }
     }
@@ -92,12 +92,10 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
         }
       }
         .distinctUntilChanged()
-        .onEach { Log.d(TAG, "TODOCHAT: chats: activeChatId ${activeChat.value?.id} == new chatId ${it?.id} ${activeChat.value?.id == it?.id} ") }
         // Only changed chatInfo is important thing. Other properties can be skipped for reducing recompositions
-        .filter { it != null && it?.chatInfo != activeChat.value?.chatInfo }
+        .filter { it != null && it.chatInfo != activeChat.value?.chatInfo }
         .collect {
           activeChat.value = it
-          Log.d(TAG, "TODOCHAT: chats: activeChatId became ${activeChat.value?.id}")
         }
     }
   }
@@ -148,7 +146,6 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
           },
           attachmentOption,
           attachmentBottomSheetState,
-          chatModel.chatItems,
           searchText,
           useLinkPreviews = useLinkPreviews,
           linkMode = chatModel.simplexLinkMode.value,
@@ -226,19 +223,17 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
           loadPrevMessages = {
             if (chatModel.chatId.value != activeChat.value?.id) return@ChatLayout
             val c = chatModel.getChat(chatModel.chatId.value ?: return@ChatLayout)
-            val firstId = chatModel.chatItems.firstOrNull()?.id
+            val firstId = chatModel.chatItems.value.firstOrNull()?.id
             if (c != null && firstId != null) {
               withBGApi {
-                Log.d(TAG, "TODOCHAT: loadPrevMessages: loading for ${c.id}, current chatId ${ChatModel.chatId.value}, size was ${ChatModel.chatItems.size}")
                 apiLoadPrevMessages(c, chatModel, firstId, searchText.value)
-                Log.d(TAG, "TODOCHAT: loadPrevMessages: loaded for ${c.id}, current chatId ${ChatModel.chatId.value}, size now ${ChatModel.chatItems.size}")
               }
             }
           },
           deleteMessage = { itemId, mode ->
             withBGApi {
               val cInfo = chat.chatInfo
-              val toDeleteItem = chatModel.chatItems.firstOrNull { it.id == itemId }
+              val toDeleteItem = chatModel.chatItems.value.firstOrNull { it.id == itemId }
               val toModerate = toDeleteItem?.memberToModerate(chat.chatInfo)
               val groupInfo = toModerate?.first
               val groupMember = toModerate?.second
@@ -404,12 +399,15 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
                   setGroupMembers(chatRh, chat.chatInfo.groupInfo, chatModel)
                 }
                 ModalManager.end.closeModals()
-                ModalManager.end.showModal(endButtons = {
+                ModalManager.end.showModalCloseable(endButtons = {
                   ShareButton {
                     clipboard.shareText(itemInfoShareText(chatModel, cItem, ciInfo, chatModel.controller.appPrefs.developerTools.get()))
                   }
-                }) {
+                }) { close ->
                   ChatItemInfoView(chatModel, cItem, ciInfo, devTools = chatModel.controller.appPrefs.developerTools.get())
+                  KeyChangeEffect(chatModel.chatId.value) {
+                    close()
+                  }
                 }
               }
             }
@@ -495,7 +493,6 @@ fun ChatLayout(
   composeView: (@Composable () -> Unit),
   attachmentOption: MutableState<AttachmentOption?>,
   attachmentBottomSheetState: ModalBottomSheetState,
-  chatItems: List<ChatItem>,
   searchValue: State<String>,
   useLinkPreviews: Boolean,
   linkMode: SimplexLinkMode,
@@ -582,7 +579,7 @@ fun ChatLayout(
             .padding(contentPadding)
           ) {
             ChatItemsList(
-              chat, unreadCount, composeState, chatItems, searchValue,
+              chat, unreadCount, composeState, searchValue,
               useLinkPreviews, linkMode, showMemberInfo, loadPrevMessages, deleteMessage, deleteMessages,
               receiveFile, cancelFile, joinGroup, acceptCall, acceptFeature, openDirectChat,
               updateContactStats, updateMemberStats, syncContactConnection, syncMemberConnection, findModelChat, findModelMember,
@@ -840,7 +837,6 @@ fun BoxWithConstraintsScope.ChatItemsList(
   chat: Chat,
   unreadCount: State<Int>,
   composeState: MutableState<ComposeState>,
-  chatItems: List<ChatItem>,
   searchValue: State<String>,
   useLinkPreviews: Boolean,
   linkMode: SimplexLinkMode,
@@ -869,7 +865,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
 ) {
   val listState = rememberLazyListState()
   val scope = rememberCoroutineScope()
-  ScrollToBottom(chat.id, listState, chatItems)
+  ScrollToBottom(chat.id, listState, chatModel.chatItems)
   var prevSearchEmptiness by rememberSaveable { mutableStateOf(searchValue.value.isEmpty()) }
   // Scroll to bottom when search value changes from something to nothing and back
   LaunchedEffect(searchValue.value.isEmpty()) {
@@ -886,7 +882,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
   PreloadItems(listState, ChatPagination.UNTIL_PRELOAD_COUNT, loadPrevMessages)
 
   Spacer(Modifier.size(8.dp))
-  val reversedChatItems by remember { derivedStateOf { chatItems.reversed().toList() } }
+  val reversedChatItems by remember { derivedStateOf { chatModel.chatItems.asReversed() } }
   val maxHeightRounded = with(LocalDensity.current) { maxHeight.roundToPx() }
   val scrollToItem: (Long) -> Unit = { itemId: Long ->
     val index = reversedChatItems.indexOfFirst { it.id == itemId }
@@ -939,7 +935,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
           }
         }
         val provider = {
-          providerForGallery(i, chatItems, cItem.id) { indexInReversed ->
+          providerForGallery(i, chatModel.chatItems.value, cItem.id) { indexInReversed ->
             scope.launch {
               listState.scrollToItem(
                 kotlin.math.min(reversedChatItems.lastIndex, indexInReversed + 1),
@@ -1062,11 +1058,11 @@ fun BoxWithConstraintsScope.ChatItemsList(
       }
     }
   }
-  FloatingButtons(chatItems, unreadCount, chat.chatStats.minUnreadItemId, searchValue, markRead, setFloatingButton, listState)
+  FloatingButtons(chatModel.chatItems, unreadCount, chat.chatStats.minUnreadItemId, searchValue, markRead, setFloatingButton, listState)
 }
 
 @Composable
-private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems: List<ChatItem>) {
+private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems: State<List<ChatItem>>) {
   val scope = rememberCoroutineScope()
   // Helps to scroll to bottom after moving from Group to Direct chat
   // and prevents scrolling to bottom on orientation change
@@ -1084,7 +1080,7 @@ private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems:
   * When the first visible item (from bottom) is visible (even partially) we can autoscroll to 0 item. Or just scrollBy small distance otherwise
   * */
   LaunchedEffect(Unit) {
-    snapshotFlow { chatItems.lastOrNull()?.id }
+    snapshotFlow { chatItems.value.lastOrNull()?.id }
       .distinctUntilChanged()
       .filter { listState.layoutInfo.visibleItemsInfo.firstOrNull()?.key != it }
       .collect {
@@ -1107,7 +1103,7 @@ private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems:
 
 @Composable
 fun BoxWithConstraintsScope.FloatingButtons(
-  chatItems: List<ChatItem>,
+  chatItems: State<List<ChatItem>>,
   unreadCount: State<Int>,
   minUnreadItemId: Long,
   searchValue: State<String>,
@@ -1141,10 +1137,11 @@ fun BoxWithConstraintsScope.FloatingButtons(
   val bottomUnreadCount by remember {
     derivedStateOf {
       if (unreadCount.value == 0) return@derivedStateOf 0
-      val from = chatItems.lastIndex - firstVisibleIndex - lastIndexOfVisibleItems
-      if (chatItems.size <= from || from < 0) return@derivedStateOf 0
+      val items = chatItems.value
+      val from = items.lastIndex - firstVisibleIndex - lastIndexOfVisibleItems
+      if (items.size <= from || from < 0) return@derivedStateOf 0
 
-      chatItems.subList(from, chatItems.size).count { it.isRcvNew }
+      items.subList(from, items.size).count { it.isRcvNew }
     }
   }
   val firstVisibleOffset = (-with(LocalDensity.current) { maxHeight.roundToPx() } * 0.8).toInt()
@@ -1190,7 +1187,7 @@ fun BoxWithConstraintsScope.FloatingButtons(
         painterResource(MR.images.ic_check),
         onClick = {
           markRead(
-            CC.ItemRange(minUnreadItemId, chatItems[chatItems.size - listState.layoutInfo.visibleItemsInfo.lastIndex - 1].id - 1),
+            CC.ItemRange(minUnreadItemId, chatItems.value[chatItems.size - listState.layoutInfo.visibleItemsInfo.lastIndex - 1].id - 1),
             bottomUnreadCount
           )
           showDropDown.value = false
@@ -1495,7 +1492,6 @@ fun PreviewChatLayout() {
       composeView = {},
       attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
       attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
-      chatItems = chatItems,
       searchValue,
       useLinkPreviews = true,
       linkMode = SimplexLinkMode.DESCRIPTION,
@@ -1568,7 +1564,6 @@ fun PreviewGroupChatLayout() {
       composeView = {},
       attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
       attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
-      chatItems = chatItems,
       searchValue,
       useLinkPreviews = true,
       linkMode = SimplexLinkMode.DESCRIPTION,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ComposeView.kt

@@ -267,7 +267,7 @@ fun ComposeView(
   fun loadLinkPreview(url: String, wait: Long? = null) {
     if (pendingLinkUrl.value == url) {
       composeState.value = composeState.value.copy(preview = ComposePreview.CLinkPreview(null))
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi(slow = 60_000) {
         if (wait != null) delay(wait)
         val lp = getLinkPreview(url)
         if (lp != null && pendingLinkUrl.value == url) {
@@ -551,7 +551,7 @@ fun ComposeView(
   }
 
   fun sendMessage(ttl: Int?) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi(slow = 120_000) {
       sendMessageAsync(null, false, ttl)
     }
   }
@@ -583,6 +583,10 @@ fun ComposeView(
   }
 
   fun cancelLinkPreview() {
+    val pendingLink = pendingLinkUrl.value
+    if (pendingLink != null) {
+      cancelledLinks.add(pendingLink)
+    }
     val uri = composeState.value.linkPreview?.uri
     if (uri != null) {
       cancelledLinks.add(uri)
@@ -661,7 +665,7 @@ fun ComposeView(
 
   fun editPrevMessage() {
     if (composeState.value.contextItem != ComposeContextItem.NoContextItem || composeState.value.preview != ComposePreview.NoPreview) return
-    val lastEditable = chatModel.chatItems.findLast { it.meta.editable }
+    val lastEditable = chatModel.chatItems.value.findLast { it.meta.editable }
     if (lastEditable != null) {
       composeState.value = ComposeState(editingItem = lastEditable, useLinkPreviews = useLinkPreviews)
     }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/SendMsgView.kt

@@ -59,14 +59,6 @@ fun SendMsgView(
 ) {
   val showCustomDisappearingMessageDialog = remember { mutableStateOf(false) }
 
-  if (showCustomDisappearingMessageDialog.value) {
-    CustomDisappearingMessageDialog(
-      sendMessage = sendMessage,
-      setShowDialog = { showCustomDisappearingMessageDialog.value = it },
-      customDisappearingMessageTimePref = customDisappearingMessageTimePref
-    )
-  }
-
   Box(Modifier.padding(vertical = 8.dp)) {
     val cs = composeState.value
     var progressByTimeout by rememberSaveable { mutableStateOf(false) }
@@ -203,6 +195,11 @@ fun SendMsgView(
             DefaultDropdownMenu(showDropdown) {
               menuItems.forEach { composable -> composable() }
             }
+            CustomDisappearingMessageDialog(
+              showCustomDisappearingMessageDialog,
+              sendMessage = sendMessage,
+              customDisappearingMessageTimePref = customDisappearingMessageTimePref
+            )
           } else {
             SendMsgButton(icon, sendButtonSize, sendButtonAlpha, sendButtonColor, !sendMsgButtonDisabled, sendMessage)
           }
@@ -220,93 +217,43 @@ expect fun VoiceButtonWithoutPermissionByPlatform()
 
 @Composable
 private fun CustomDisappearingMessageDialog(
+  showMenu: MutableState<Boolean>,
   sendMessage: (Int?) -> Unit,
-  setShowDialog: (Boolean) -> Unit,
   customDisappearingMessageTimePref: SharedPreference<Int>?
 ) {
-  val showCustomTimePicker = remember { mutableStateOf(false) }
-
-  if (showCustomTimePicker.value) {
-    val selectedDisappearingMessageTime = remember {
-      mutableStateOf(customDisappearingMessageTimePref?.get?.invoke() ?: 300)
-    }
-    CustomTimePickerDialog(
-      selectedDisappearingMessageTime,
-      title = generalGetString(MR.strings.delete_after),
-      confirmButtonText = generalGetString(MR.strings.send_disappearing_message_send),
-      confirmButtonAction = { ttl ->
-        sendMessage(ttl)
-        customDisappearingMessageTimePref?.set?.invoke(ttl)
-        setShowDialog(false)
-      },
-      cancel = { setShowDialog(false) }
+  DefaultDropdownMenu(showMenu) {
+    Text(
+      generalGetString(MR.strings.send_disappearing_message),
+      Modifier.padding(vertical = DEFAULT_PADDING_HALF, horizontal = DEFAULT_PADDING * 1.5f),
+      fontSize = 16.sp,
+      color = MaterialTheme.colors.secondary
     )
-  } else {
-    @Composable
-    fun ChoiceButton(
-      text: String,
-      onClick: () -> Unit
-    ) {
-      TextButton(onClick) {
-        Text(
-          text,
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-    }
 
-    DefaultDialog(onDismissRequest = { setShowDialog(false) }) {
-      Surface(
-        shape = RoundedCornerShape(corner = CornerSize(25.dp)),
-        contentColor = LocalContentColor.current
-      ) {
-        Box(
-          contentAlignment = Alignment.Center
-        ) {
-          Column(
-            modifier = Modifier.padding(DEFAULT_PADDING),
-            verticalArrangement = Arrangement.spacedBy(6.dp),
-            horizontalAlignment = Alignment.CenterHorizontally
-          ) {
-            Row(
-              modifier = Modifier.fillMaxWidth(),
-              horizontalArrangement = Arrangement.SpaceBetween,
-              verticalAlignment = Alignment.CenterVertically
-            ) {
-              Text(" ") // centers title
-              Text(
-                generalGetString(MR.strings.send_disappearing_message),
-                fontSize = 16.sp,
-                color = MaterialTheme.colors.secondary
-              )
-              Icon(
-                painterResource(MR.images.ic_close),
-                generalGetString(MR.strings.icon_descr_close_button),
-                tint = MaterialTheme.colors.secondary,
-                modifier = Modifier
-                  .size(25.dp)
-                  .clickable { setShowDialog(false) }
-              )
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_30_seconds)) {
-              sendMessage(30)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_1_minute)) {
-              sendMessage(60)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_5_minutes)) {
-              sendMessage(300)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_custom_time)) {
-              showCustomTimePicker.value = true
-            }
-          }
-        }
-      }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_30_seconds)) {
+      sendMessage(30)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_1_minute)) {
+      sendMessage(60)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_5_minutes)) {
+      sendMessage(300)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_custom_time)) {
+      showMenu.value = false
+      val selectedDisappearingMessageTime = mutableStateOf(customDisappearingMessageTimePref?.get?.invoke() ?: 300)
+      showCustomTimePickerDialog(
+        selectedDisappearingMessageTime,
+        title = generalGetString(MR.strings.delete_after),
+        confirmButtonText = generalGetString(MR.strings.send_disappearing_message_send),
+        confirmButtonAction = { ttl ->
+          sendMessage(ttl)
+          customDisappearingMessageTimePref?.set?.invoke(ttl)
+        },
+        cancel = { showMenu.value = false }
+      )
     }
   }
 }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/AddGroupMembersView.kt

@@ -54,7 +54,7 @@ fun AddGroupMembersView(rhId: Long?, groupInfo: GroupInfo, creatingGroup: Boolea
     },
     inviteMembers = {
       allowModifyMembers = false
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi(slow = 120_000) {
         for (contactId in selectedContacts) {
           val member = chatModel.controller.apiAddMember(rhId, groupInfo.groupId, contactId, selectedRole.value)
           if (member != null) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupChatInfoView.kt

@@ -152,7 +152,7 @@ fun leaveGroupDialog(rhId: Long?, groupInfo: GroupInfo, chatModel: ChatModel, cl
     text = generalGetString(MR.strings.you_will_stop_receiving_messages_from_this_group_chat_history_will_be_preserved),
     confirmText = generalGetString(MR.strings.leave_group_button),
     onConfirm = {
-      withBGApi {
+      withLongRunningApi(60_000) {
         chatModel.controller.leaveGroup(rhId, groupInfo.groupId)
         close?.invoke()
       }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupMemberInfoView.kt

@@ -3,11 +3,9 @@ package chat.simplex.common.views.chat.group
 import InfoRow
 import SectionBottomSpacer
 import SectionDividerSpaced
-import SectionItemView
 import SectionSpacer
 import SectionTextFooter
 import SectionView
-import TextIconSpaced
 import androidx.compose.desktop.ui.tooling.preview.Preview
 import java.net.URI
 import androidx.compose.foundation.*
@@ -74,9 +72,8 @@ fun GroupMemberInfoView(
             if (chatModel.getContactChat(it) == null) {
               chatModel.addChat(c)
             }
-            chatModel.chatItems.clear()
             chatModel.chatItemStatuses.clear()
-            chatModel.chatItems.addAll(c.chatItems)
+            chatModel.chatItems.replaceAll(c.chatItems)
             chatModel.chatId.value = c.id
             closeAll()
           }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/WelcomeMessageView.kt

@@ -3,6 +3,7 @@ package chat.simplex.common.views.chat.group
 import SectionBottomSpacer
 import SectionDividerSpaced
 import SectionItemView
+import SectionTextFooter
 import SectionView
 import TextIconSpaced
 import androidx.compose.foundation.layout.*
@@ -14,6 +15,7 @@ import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.text.AnnotatedString
@@ -27,9 +29,13 @@ import chat.simplex.common.views.chat.item.MarkdownText
 import chat.simplex.common.views.helpers.*
 import chat.simplex.common.model.ChatModel
 import chat.simplex.common.model.GroupInfo
+import chat.simplex.common.platform.chatJsonLength
+import chat.simplex.common.ui.theme.DEFAULT_PADDING_HALF
 import chat.simplex.res.MR
 import kotlinx.coroutines.delay
 
+private const val maxByteCount = 1200
+
 @Composable
 fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: () -> Unit) {
   var gInfo by remember { mutableStateOf(groupInfo) }
@@ -54,8 +60,11 @@ fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: ()
 
   ModalView(
     close = {
-      if (welcomeText.value == gInfo.groupProfile.description || (welcomeText.value == "" && gInfo.groupProfile.description == null)) close()
-      else showUnsavedChangesAlert({ save(close) }, close)
+      when {
+        welcomeTextUnchanged(welcomeText, gInfo) -> close()
+        !welcomeTextFitsLimit(welcomeText) -> showUnsavedChangesTooLongAlert(close)
+        else -> showUnsavedChangesAlert({ save(close) }, close)
+      }
     },
   ) {
     GroupWelcomeLayout(
@@ -67,6 +76,14 @@ fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: ()
   }
 }
 
+private fun welcomeTextUnchanged(welcomeText: MutableState<String>, groupInfo: GroupInfo): Boolean {
+  return welcomeText.value == groupInfo.groupProfile.description || (welcomeText.value == "" && groupInfo.groupProfile.description == null)
+}
+
+private fun welcomeTextFitsLimit(welcomeText: MutableState<String>): Boolean {
+  return chatJsonLength(welcomeText.value) <= maxByteCount
+}
+
 @Composable
 private fun GroupWelcomeLayout(
   welcomeText: MutableState<String>,
@@ -95,6 +112,13 @@ private fun GroupWelcomeLayout(
       } else {
         TextPreview(wt.value, linkMode)
       }
+      SectionTextFooter(
+        if (!welcomeTextFitsLimit(wt)) { generalGetString(MR.strings.message_too_large) } else "",
+        color = if (welcomeTextFitsLimit(wt)) MaterialTheme.colors.secondary else Color.Red
+      )
+
+      Spacer(Modifier.size(8.dp))
+
       ChangeModeButton(
         editMode.value,
         click = {
@@ -104,10 +128,18 @@ private fun GroupWelcomeLayout(
       )
       val clipboard = LocalClipboardManager.current
       CopyTextButton { clipboard.setText(AnnotatedString(wt.value)) }
-      SectionDividerSpaced(maxBottomPadding = false)
+
+      Divider(
+        Modifier.padding(
+          start = DEFAULT_PADDING_HALF,
+          top = 8.dp,
+          end = DEFAULT_PADDING_HALF,
+          bottom = 8.dp)
+      )
+
       SaveButton(
         save = save,
-        disabled = wt.value == groupInfo.groupProfile.description || (wt.value == "" && groupInfo.groupProfile.description == null)
+        disabled = welcomeTextUnchanged(wt, groupInfo) || !welcomeTextFitsLimit(wt)
       )
     } else {
       val clipboard = LocalClipboardManager.current
@@ -182,3 +214,11 @@ private fun showUnsavedChangesAlert(save: () -> Unit, revert: () -> Unit) {
     onDismiss = revert,
   )
 }
+
+private fun showUnsavedChangesTooLongAlert(revert: () -> Unit) {
+  AlertManager.shared.showAlertDialogStacked(
+    title = generalGetString(MR.strings.welcome_message_is_too_long),
+    confirmText = generalGetString(MR.strings.exit_without_saving),
+    onConfirm = revert,
+  )
+}

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/CIFileView.kt

@@ -94,7 +94,7 @@ fun CIFileView(
             FileProtocol.LOCAL -> {}
           }
         file.fileStatus is CIFileStatus.RcvComplete || (file.fileStatus is CIFileStatus.SndStored && file.fileProtocol == FileProtocol.LOCAL) -> {
-          withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+          withLongRunningApi(slow = 600_000) {
             var filePath = getLoadedFilePath(file)
             if (chatModel.connectedToRemote() && filePath == null) {
               file.loadRemoteFile(true)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/CIVIdeoView.kt

@@ -41,7 +41,7 @@ fun CIVideoView(
     val filePath = remember(file, CIFile.cachedRemoteFileRequests.toList()) { mutableStateOf(getLoadedFilePath(file)) }
     if (chatModel.connectedToRemote()) {
       LaunchedEffect(file) {
-        withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+        withLongRunningApi(slow = 600_000) {
           if (file != null && file.loaded && getLoadedFilePath(file) == null) {
             file.loadRemoteFile(false)
             filePath.value = getLoadedFilePath(file)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/ChatItemView.kt

@@ -103,7 +103,7 @@ fun ChatItemView(
               setReaction(cInfo, cItem, !r.userReacted, r.reaction)
             }
           }
-          Row(modifier.padding(2.dp)) {
+          Row(modifier.padding(2.dp), verticalAlignment = Alignment.CenterVertically) {
             ReactionIcon(r.reaction.text, fontSize = 12.sp)
             if (r.totalReacted > 1) {
               Spacer(Modifier.width(4.dp))
@@ -112,7 +112,6 @@ fun ChatItemView(
                 fontSize = 11.5.sp,
                 fontWeight = if (r.userReacted) FontWeight.Bold else FontWeight.Normal,
                 color = if (r.userReacted) MaterialTheme.colors.primary else MaterialTheme.colors.secondary,
-                modifier = if (appPlatform.isAndroid) Modifier else Modifier.padding(top = 4.dp)
               )
             }
           }
@@ -178,7 +177,8 @@ fun ChatItemView(
         fun MsgContentItemDropdownMenu() {
           val saveFileLauncher = rememberSaveFileLauncher(ciFile = cItem.file)
           when {
-            cItem.content.msgContent != null -> {
+            // cItem.id check is a special case for live message chat item which has negative ID while not sent yet
+            cItem.content.msgContent != null && cItem.id >= 0 -> {
               DefaultDropdownMenu(showMenu) {
                 if (cInfo.featureEnabled(ChatFeature.Reactions) && cItem.allowAddReaction) {
                   MsgReactionsMenu()
@@ -213,7 +213,7 @@ fun ChatItemView(
                       showMenu.value = false
                     }
                     if (chatModel.connectedToRemote() && fileSource == null) {
-                      withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+                      withLongRunningApi(slow = 600_000) {
                         cItem.file?.loadRemoteFile(true)
                         fileSource = getLoadedFileSource(cItem.file)
                         shareIfExists()
@@ -332,7 +332,7 @@ fun ChatItemView(
         }
 
         fun mergedGroupEventText(chatItem: ChatItem): String? {
-          val (count, ns, lastNonConnectedEvent) = chatModel.getConnectedMemberNames(chatItem)
+          val (count, ns) = chatModel.getConnectedMemberNames(chatItem)
           val members = when {
             ns.size == 1 -> String.format(generalGetString(MR.strings.rcv_group_event_1_member_connected), ns[0])
             ns.size == 2 -> String.format(generalGetString(MR.strings.rcv_group_event_2_members_connected), ns[0], ns[1])
@@ -342,8 +342,6 @@ fun ChatItemView(
           }
           return if (count <= 1) {
             null
-          } else if (lastNonConnectedEvent != null) {
-            lastNonConnectedEvent + " " + generalGetString(MR.strings.rcv_group_and_other_events).format(count - ns.size)
           } else if (ns.isEmpty()) {
             generalGetString(MR.strings.rcv_group_events_count).format(count)
           } else if (count > ns.size) {
@@ -529,8 +527,9 @@ fun DeleteItemAction(
           val range = chatViewItemsRange(currIndex, prevHidden)
           if (range != null) {
             val itemIds: ArrayList<Long> = arrayListOf()
+            val reversedChatItems = chatModel.chatItems.asReversed()
             for (i in range) {
-              itemIds.add(chatModel.chatItems.asReversed()[i].id)
+              itemIds.add(reversedChatItems[i].id)
             }
             deleteMessagesAlertDialog(itemIds, generalGetString(MR.strings.delete_message_mark_deleted_warning), deleteMessages = deleteMessages)
           } else {
@@ -653,6 +652,23 @@ fun ItemAction(text: String, icon: ImageVector, onClick: () -> Unit, color: Colo
   }
 }
 
+@Composable
+fun ItemAction(text: String, color: Color = Color.Unspecified, onClick: () -> Unit) {
+  val finalColor = if (color == Color.Unspecified) {
+    MenuTextColor
+  } else color
+  DropdownMenuItem(onClick, contentPadding = PaddingValues(horizontal = DEFAULT_PADDING * 1.5f)) {
+    Text(
+      text,
+      modifier = Modifier
+        .fillMaxWidth()
+        .weight(1F)
+        .padding(end = 15.dp),
+      color = finalColor
+    )
+  }
+}
+
 fun cancelFileAlertDialog(fileId: Long, cancelFile: (Long) -> Unit, cancelAction: CancelAction) {
   AlertManager.shared.showAlertDialog(
     title = generalGetString(cancelAction.alert.titleId),

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ChatListNavLinkView.kt

@@ -212,18 +212,15 @@ suspend fun openGroupChat(rhId: Long?, groupId: Long, chatModel: ChatModel) {
 }
 
 suspend fun openChat(rhId: Long?, chatInfo: ChatInfo, chatModel: ChatModel) {
-  Log.d(TAG, "TODOCHAT: openChat: opening ${chatInfo.id}, current chatId ${ChatModel.chatId.value}, size ${ChatModel.chatItems.size}")
   val chat = chatModel.controller.apiGetChat(rhId, chatInfo.chatType, chatInfo.apiId)
   if (chat != null) {
     openLoadedChat(chat, chatModel)
-    Log.d(TAG, "TODOCHAT: openChat: opened ${chatInfo.id}, current chatId ${ChatModel.chatId.value}, size ${ChatModel.chatItems.size}")
   }
 }
 
 fun openLoadedChat(chat: Chat, chatModel: ChatModel) {
-  chatModel.chatItems.clear()
   chatModel.chatItemStatuses.clear()
-  chatModel.chatItems.addAll(chat.chatItems)
+  chatModel.chatItems.replaceAll(chat.chatItems)
   chatModel.chatId.value = chat.chatInfo.id
 }
 
@@ -239,8 +236,7 @@ suspend fun apiFindMessages(ch: Chat, chatModel: ChatModel, search: String) {
   val chatInfo = ch.chatInfo
   val chat = chatModel.controller.apiGetChat(ch.remoteHostId, chatInfo.chatType, chatInfo.apiId, search = search) ?: return
   if (chatModel.chatId.value != chat.id) return
-  chatModel.chatItems.clear()
-  chatModel.chatItems.addAll(0, chat.chatItems)
+  chatModel.chatItems.replaceAll(chat.chatItems)
 }
 
 suspend fun setGroupMembers(rhId: Long?, groupInfo: GroupInfo, chatModel: ChatModel) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/database/DatabaseEncryptionView.kt

@@ -62,7 +62,7 @@ fun DatabaseEncryptionView(m: ChatModel) {
       initialRandomDBPassphrase,
       progressIndicator,
       onConfirmEncrypt = {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi {
           encryptDatabase(currentKey, newKey, confirmNewKey, initialRandomDBPassphrase, useKeychain, storedKey, progressIndicator)
         }
       }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/database/DatabaseView.kt

@@ -368,7 +368,7 @@ fun chatArchiveTitle(chatArchiveTime: Instant, chatLastStart: Instant): String {
 }
 
 fun startChat(m: ChatModel, chatLastStart: MutableState<Instant?>, chatDbChanged: MutableState<Boolean>, progressIndicator: MutableState<Boolean>? = null) {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     try {
       progressIndicator?.value = true
       if (chatDbChanged.value) {
@@ -581,7 +581,7 @@ private fun importArchive(
   progressIndicator.value = true
   val archivePath = saveArchiveFromURI(importedArchiveURI)
   if (archivePath != null) {
-    withLongRunningApi(slow = 60_000, deadlock = 180_000) {
+    withLongRunningApi {
       try {
         m.controller.apiDeleteStorage()
         try {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/AlertManager.kt

@@ -12,6 +12,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.*
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.style.TextAlign
@@ -22,6 +23,8 @@ import chat.simplex.common.ui.theme.*
 import chat.simplex.res.MR
 import dev.icerock.moko.resources.StringResource
 import dev.icerock.moko.resources.compose.painterResource
+import dev.icerock.moko.resources.compose.stringResource
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 
 class AlertManager {
@@ -128,6 +131,8 @@ class AlertManager {
             ) {
               val focusRequester = remember { FocusRequester() }
               LaunchedEffect(Unit) {
+                // Wait before focusing to prevent auto-confirming if a user used Enter key on hardware keyboard
+                delay(200)
                 focusRequester.requestFocus()
               }
               TextButton(onClick = {
@@ -186,6 +191,7 @@ class AlertManager {
     title: String, text: String? = null,
     confirmText: String = generalGetString(MR.strings.ok),
     hostDevice: Pair<Long?, String>? = null,
+    shareText: Boolean? = null
   ) {
     showAlert {
       AlertDialog(
@@ -195,12 +201,23 @@ class AlertManager {
           AlertContent(text, hostDevice, extraPadding = true) {
             val focusRequester = remember { FocusRequester() }
             LaunchedEffect(Unit) {
+              // Wait before focusing to prevent auto-confirming if a user used Enter key on hardware keyboard
+              delay(200)
               focusRequester.requestFocus()
             }
+            // Can pass shareText = false to prevent showing Share button if it's needed in a specific case
+            val showShareButton = text != null && (shareText == true || (shareText == null && text.length > 500))
             Row(
               Modifier.fillMaxWidth().padding(horizontal = DEFAULT_PADDING),
-              horizontalArrangement = Arrangement.Center
+              horizontalArrangement = if (showShareButton) Arrangement.SpaceBetween else Arrangement.Center
             ) {
+              val clipboard = LocalClipboardManager.current
+              if (showShareButton && text != null) {
+                TextButton(onClick = {
+                  clipboard.shareText(text)
+                  hideAlert()
+                }) { Text(stringResource(MR.strings.share_verb)) }
+              }
               TextButton(
                 onClick = {
                   hideAlert()

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/CustomTimePicker.kt

@@ -1,116 +1,21 @@
 package chat.simplex.common.views.helpers
 
-import androidx.compose.foundation.clickable
+import SectionItemView
 import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.shape.CornerSize
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import dev.icerock.moko.resources.compose.painterResource
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.window.Dialog
-import chat.simplex.common.ui.theme.DEFAULT_PADDING
+import androidx.compose.ui.text.style.TextAlign
 import chat.simplex.common.model.CustomTimeUnit
 import chat.simplex.common.model.timeText
 import chat.simplex.res.MR
-import com.sd.lib.compose.wheel_picker.*
 
 @Composable
-fun CustomTimePicker(
+expect fun CustomTimePicker(
   selection: MutableState<Int>,
   timeUnitsLimits: List<TimeUnitLimits> = TimeUnitLimits.defaultUnitsLimits
-) {
-  fun getUnitValues(unit: CustomTimeUnit, selectedValue: Int): List<Int> {
-    val unitLimits = timeUnitsLimits.firstOrNull { it.timeUnit == unit } ?: TimeUnitLimits.defaultUnitLimits(unit)
-    val regularUnitValues = (unitLimits.minValue..unitLimits.maxValue).toList()
-    return regularUnitValues + if (regularUnitValues.contains(selectedValue)) emptyList() else listOf(selectedValue)
-  }
-
-  val (unit, duration) = CustomTimeUnit.toTimeUnit(selection.value)
-  val selectedUnit: MutableState<CustomTimeUnit> = remember { mutableStateOf(unit) }
-  val selectedDuration = remember { mutableStateOf(duration) }
-  val selectedUnitValues = remember { mutableStateOf(getUnitValues(selectedUnit.value, selectedDuration.value)) }
-  val isTriggered = remember { mutableStateOf(false) }
-
-  LaunchedEffect(selectedUnit.value) {
-    // on initial composition, if passed selection doesn't fit into picker bounds, so that selectedDuration is bigger than selectedUnit maxValue
-    // (e.g., for selection = 121 seconds: selectedUnit would be Second, selectedDuration would be 121 > selectedUnit maxValue of 120),
-    // selectedDuration would've been replaced by maxValue - isTriggered check prevents this by skipping LaunchedEffect on initial composition
-    if (isTriggered.value) {
-      val maxValue = timeUnitsLimits.firstOrNull { it.timeUnit == selectedUnit.value }?.maxValue
-      if (maxValue != null && selectedDuration.value > maxValue) {
-        selectedDuration.value = maxValue
-        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
-      } else {
-        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
-        selection.value = selectedUnit.value.toSeconds * selectedDuration.value
-      }
-    } else {
-      isTriggered.value = true
-    }
-  }
-
-  LaunchedEffect(selectedDuration.value) {
-    selection.value = selectedUnit.value.toSeconds * selectedDuration.value
-  }
-
-  Row(
-    Modifier
-      .fillMaxWidth()
-      .padding(horizontal = DEFAULT_PADDING),
-    horizontalArrangement = Arrangement.spacedBy(0.dp)
-  ) {
-    Column(Modifier.weight(1f)) {
-      val durationPickerState = rememberFWheelPickerState(selectedUnitValues.value.indexOf(selectedDuration.value))
-      FVerticalWheelPicker(
-        count = selectedUnitValues.value.count(),
-        state = durationPickerState,
-        unfocusedCount = 2,
-        focus = {
-          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
-        }
-      ) { index ->
-        Text(
-          selectedUnitValues.value[index].toString(),
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-      LaunchedEffect(durationPickerState) {
-        snapshotFlow { durationPickerState.currentIndex }
-          .collect {
-            selectedDuration.value = selectedUnitValues.value[it]
-          }
-      }
-    }
-    Column(Modifier.weight(1f)) {
-      val unitPickerState = rememberFWheelPickerState(timeUnitsLimits.indexOfFirst { it.timeUnit == selectedUnit.value })
-      FVerticalWheelPicker(
-        count = timeUnitsLimits.count(),
-        state = unitPickerState,
-        unfocusedCount = 2,
-        focus = {
-          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
-        }
-      ) { index ->
-        Text(
-          timeUnitsLimits[index].timeUnit.text,
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-      LaunchedEffect(unitPickerState) {
-        snapshotFlow { unitPickerState.currentIndex }
-          .collect {
-            selectedUnit.value = timeUnitsLimits[it].timeUnit
-          }
-      }
-    }
-  }
-}
+)
 
 data class TimeUnitLimits(
   val timeUnit: CustomTimeUnit,
@@ -141,8 +46,7 @@ data class TimeUnitLimits(
   }
 }
 
-@Composable
-fun CustomTimePickerDialog(
+fun showCustomTimePickerDialog(
   selection: MutableState<Int>,
   timeUnitsLimits: List<TimeUnitLimits> = TimeUnitLimits.defaultUnitsLimits,
   title: String,
@@ -150,53 +54,26 @@ fun CustomTimePickerDialog(
   confirmButtonAction: (Int) -> Unit,
   cancel: () -> Unit
 ) {
-  DefaultDialog(onDismissRequest = cancel) {
-    Surface(
-      shape = RoundedCornerShape(corner = CornerSize(25.dp)),
-      contentColor = LocalContentColor.current
-    ) {
-      Box(
-        contentAlignment = Alignment.Center
+  AlertManager.shared.showAlertDialogButtonsColumn(
+    title = title,
+    onDismissRequest = cancel
+  ) {
+    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+      CustomTimePicker(
+        selection,
+        timeUnitsLimits
+      )
+      SectionItemView({
+        AlertManager.shared.hideAlert()
+        confirmButtonAction(selection.value)
+      }
       ) {
-        Column(
-          modifier = Modifier.padding(DEFAULT_PADDING),
-          verticalArrangement = Arrangement.spacedBy(6.dp),
-          horizontalAlignment = Alignment.CenterHorizontally
-        ) {
-          Row(
-            modifier = Modifier.fillMaxWidth(),
-            horizontalArrangement = Arrangement.SpaceBetween,
-            verticalAlignment = Alignment.CenterVertically
-          ) {
-            Text(" ") // centers title
-            Text(
-              title,
-              fontSize = 16.sp,
-              color = MaterialTheme.colors.secondary
-            )
-            Icon(
-              painterResource(MR.images.ic_close),
-              generalGetString(MR.strings.icon_descr_close_button),
-              tint = MaterialTheme.colors.secondary,
-              modifier = Modifier
-                .size(25.dp)
-                .clickable { cancel() }
-            )
-          }
-
-          CustomTimePicker(
-            selection,
-            timeUnitsLimits
-          )
-
-          TextButton(onClick = { confirmButtonAction(selection.value) }) {
-            Text(
-              confirmButtonText,
-              fontSize = 18.sp,
-              color = MaterialTheme.colors.primary
-            )
-          }
-        }
+        Text(
+          confirmButtonText,
+          Modifier.fillMaxWidth(),
+          textAlign = TextAlign.Center,
+          color = MaterialTheme.colors.primary
+        )
       }
     }
   }
@@ -220,7 +97,6 @@ fun DropdownCustomTimePickerSettingRow(
 
   val dropdownSelection: MutableState<DropdownSelection> = remember { mutableStateOf(DropdownSelection.DropdownValue(selection.value)) }
   val values: MutableState<List<DropdownSelection>> = remember { mutableStateOf(getValues(selection.value)) }
-  val showCustomTimePicker = remember { mutableStateOf(false) }
 
   fun updateValue(selectedValue: Int?) {
     values.value = getValues(selectedValue)
@@ -247,28 +123,22 @@ fun DropdownCustomTimePickerSettingRow(
     onSelected = { sel: DropdownSelection ->
       when (sel) {
         is DropdownSelection.DropdownValue -> updateValue(sel.value)
-        DropdownSelection.Custom -> showCustomTimePicker.value = true
+        DropdownSelection.Custom -> {
+          val selectedCustomTime = mutableStateOf(selection.value ?: 86400)
+          showCustomTimePickerDialog(
+            selectedCustomTime,
+            timeUnitsLimits = customPickerTimeUnitsLimits,
+            title = customPickerTitle,
+            confirmButtonText = customPickerConfirmButtonText,
+            confirmButtonAction = ::updateValue,
+            cancel = {
+              dropdownSelection.value = DropdownSelection.DropdownValue(selection.value)
+            }
+          )
+        }
       }
     }
   )
-
-  if (showCustomTimePicker.value) {
-    val selectedCustomTime = remember { mutableStateOf(selection.value ?: 86400) }
-    CustomTimePickerDialog(
-      selectedCustomTime,
-      timeUnitsLimits = customPickerTimeUnitsLimits,
-      title = customPickerTitle,
-      confirmButtonText = customPickerConfirmButtonText,
-      confirmButtonAction = { time ->
-        updateValue(time)
-        showCustomTimePicker.value = false
-      },
-      cancel = {
-        dropdownSelection.value = DropdownSelection.DropdownValue(selection.value)
-        showCustomTimePicker.value = false
-      }
-    )
-  }
 }
 
 private sealed class DropdownSelection {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/DefaultProgressBar.kt

@@ -5,6 +5,7 @@ import androidx.compose.material.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import chat.simplex.common.ui.theme.DEFAULT_PADDING
 
@@ -20,7 +21,7 @@ fun DefaultProgressView(description: String?) {
         strokeWidth = 2.5.dp
       )
       if (description != null) {
-        Text(description)
+        Text(description, textAlign = TextAlign.Center)
       }
     }
   }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/ModalView.kt

@@ -61,10 +61,10 @@ class ModalManager(private val placement: ModalPlacement? = null) {
     }
   }
 
-  fun showModalCloseable(settings: Boolean = false, showClose: Boolean = true, content: @Composable ModalData.(close: () -> Unit) -> Unit) {
+  fun showModalCloseable(settings: Boolean = false, showClose: Boolean = true, endButtons: @Composable RowScope.() -> Unit = {}, content: @Composable ModalData.(close: () -> Unit) -> Unit) {
     val data = ModalData()
     showCustomModal { close ->
-      ModalView(close, showClose = showClose, content = { data.content(close) })
+      ModalView(close, showClose = showClose, endButtons = endButtons, content = { data.content(close) })
     }
   }
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/ProcessedErrors.kt

@@ -16,7 +16,7 @@ class ProcessedErrors <T: AgentErrorType>(val interval: Long) {
 
   fun newError(error: T, offerRestart: Boolean) {
     timer.cancel()
-    timer = withLongRunningApi(slow = 70_000, deadlock = 130_000) {
+    timer = withLongRunningApi(slow = 130_000) {
       val delayBeforeNext = (lastShownTimestamp + interval) - System.currentTimeMillis()
       if ((lastShownOfferRestart || !offerRestart) && delayBeforeNext >= 0) {
         delay(delayBeforeNext)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/Section.kt

@@ -198,16 +198,16 @@ fun <T> SectionItemWithValue(
 }
 
 @Composable
-fun SectionTextFooter(text: String) {
-  SectionTextFooter(AnnotatedString(text))
+fun SectionTextFooter(text: String, color: Color = MaterialTheme.colors.secondary) {
+  SectionTextFooter(AnnotatedString(text), color = color)
 }
 
 @Composable
-fun SectionTextFooter(text: AnnotatedString, textAlign: TextAlign = TextAlign.Start) {
+fun SectionTextFooter(text: AnnotatedString, textAlign: TextAlign = TextAlign.Start, color: Color = MaterialTheme.colors.secondary) {
   Text(
     text,
     Modifier.padding(start = DEFAULT_PADDING, end = DEFAULT_PADDING, top = DEFAULT_PADDING_HALF).fillMaxWidth(0.9F),
-    color = MaterialTheme.colors.secondary,
+    color = color,
     lineHeight = 18.sp,
     fontSize = 14.sp,
     textAlign = textAlign

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/Utils.kt

@@ -37,30 +37,22 @@ fun withBGApi(action: suspend CoroutineScope.() -> Unit): Job =
     CoroutineScope(singleThreadDispatcher).launch(block = { wrapWithLogging(action, it) })
   }
 
-fun withLongRunningApi(slow: Long = Long.MAX_VALUE, deadlock: Long = Long.MAX_VALUE, action: suspend CoroutineScope.() -> Unit): Job =
+fun withLongRunningApi(slow: Long = Long.MAX_VALUE, action: suspend CoroutineScope.() -> Unit): Job =
   Exception().let {
-    CoroutineScope(Dispatchers.Default).launch(block = { wrapWithLogging(action, it, slow = slow, deadlock = deadlock) })
+    CoroutineScope(Dispatchers.Default).launch(block = { wrapWithLogging(action, it, slow = slow) })
   }
 
-private suspend fun wrapWithLogging(action: suspend CoroutineScope.() -> Unit, exception: java.lang.Exception, slow: Long = 10_000, deadlock: Long = 60_000) = coroutineScope {
+private suspend fun wrapWithLogging(action: suspend CoroutineScope.() -> Unit, exception: java.lang.Exception, slow: Long = 20_000) = coroutineScope {
   val start = System.currentTimeMillis()
-  val job = launch {
-    delay(deadlock)
-    Log.e(TAG, "Possible deadlock of the thread, not finished after ${deadlock / 1000}s:\n${exception.stackTraceToString()}")
-    AlertManager.shared.showAlertMsg(
-      title = generalGetString(MR.strings.possible_deadlock_title),
-      text = generalGetString(MR.strings.possible_deadlock_desc).format(deadlock / 1000, exception.stackTraceToString()),
-    )
-  }
   action()
-  job.cancel()
-  if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
-    val end = System.currentTimeMillis()
-    if (end - start > slow) {
-      Log.e(TAG, "Possible problem with execution of the thread, took ${(end - start) / 1000}s:\n${exception.stackTraceToString()}")
+  val end = System.currentTimeMillis()
+  if (end - start > slow) {
+    Log.e(TAG, "Possible problem with execution of the thread, took ${(end - start) / 1000}s:\n${exception.stackTraceToString()}")
+    if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
       AlertManager.shared.showAlertMsg(
         title = generalGetString(MR.strings.possible_slow_function_title),
         text = generalGetString(MR.strings.possible_slow_function_desc).format((end - start) / 1000, exception.stackTraceToString()),
+        shareText = true
       )
     }
   }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/localauth/LocalAuthView.kt

@@ -49,7 +49,7 @@ fun LocalAuthView(m: ChatModel, authRequest: LocalAuthRequest) {
 }
 
 private fun deleteStorageAndRestart(m: ChatModel, password: String, completed: (LAResult) -> Unit) {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     try {
       /** Waiting until [initChatController] finishes */
       while (m.ctrlInitInProgress.value) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/onboarding/SetupDatabasePassphrase.kt

@@ -50,7 +50,7 @@ fun SetupDatabasePassphrase(m: ChatModel) {
     confirmNewKey,
     progressIndicator,
     onConfirmEncrypt = {
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi {
         if (m.chatRunning.value == true) {
           // Stop chat if it's started before doing anything
           stopChatAsync(m)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/NetworkAndServers.kt

@@ -47,10 +47,6 @@ fun NetworkAndServersView(
   val onionHosts = remember { mutableStateOf(netCfg.onionHosts) }
   val sessionMode = remember { mutableStateOf(netCfg.sessionMode) }
 
-  LaunchedEffect(Unit) {
-    chatModel.userSMPServersUnsaved.value = null
-  }
-
   val proxyPort = remember { derivedStateOf { chatModel.controller.appPrefs.networkProxyHostPort.state.value?.split(":")?.lastOrNull()?.toIntOrNull() ?: 9050 } }
   NetworkAndServersLayout(
     currentRemoteHost = currentRemoteHost,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/PrivacySettings.kt

@@ -96,7 +96,7 @@ fun PrivacySettingsView(
     val currentUser = chatModel.currentUser.value
     if (currentUser != null) {
       fun setSendReceiptsContacts(enable: Boolean, clearOverrides: Boolean) {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi(slow = 60_000) {
           val mrs = UserMsgReceiptSettings(enable, clearOverrides)
           chatModel.controller.apiSetUserContactReceipts(currentUser, mrs)
           chatModel.controller.appPrefs.privacyDeliveryReceiptsSet.set(true)
@@ -119,7 +119,7 @@ fun PrivacySettingsView(
       }
 
       fun setSendReceiptsGroups(enable: Boolean, clearOverrides: Boolean) {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi(slow = 60_000) {
           val mrs = UserMsgReceiptSettings(enable, clearOverrides)
           chatModel.controller.apiSetUserGroupReceipts(currentUser, mrs)
           chatModel.controller.appPrefs.privacyDeliveryReceiptsSet.set(true)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/ProtocolServersView.kt

@@ -28,19 +28,18 @@ import chat.simplex.res.MR
 @Composable
 fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: ServerProtocol, close: () -> Unit) {
   var presetServers by remember(rhId) { mutableStateOf(emptyList<String>()) }
-  var servers by remember(rhId) {
-    mutableStateOf(m.userSMPServersUnsaved.value ?: emptyList())
-  }
+  var servers by remember { stateGetOrPut("servers") { emptyList<ServerCfg>() } }
+  var serversAlreadyLoaded by remember { stateGetOrPut("serversAlreadyLoaded") { false } }
   val currServers = remember(rhId) { mutableStateOf(servers) }
   val testing = rememberSaveable(rhId) { mutableStateOf(false) }
-  val serversUnchanged = remember { derivedStateOf { servers == currServers.value || testing.value } }
-  val allServersDisabled = remember { derivedStateOf { servers.all { !it.enabled } } }
-  val saveDisabled = remember {
+  val serversUnchanged = remember(servers) { derivedStateOf { servers == currServers.value || testing.value } }
+  val allServersDisabled = remember { derivedStateOf { servers.none { it.enabled } } }
+  val saveDisabled = remember(servers) {
     derivedStateOf {
       servers.isEmpty() ||
       servers == currServers.value ||
       testing.value ||
-      !servers.all { srv ->
+      servers.none { srv ->
         val address = parseServerAddress(srv.server)
         address != null && uniqueAddress(srv, address, servers)
       } ||
@@ -49,8 +48,8 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
   }
 
   KeyChangeEffect(rhId) {
-    m.userSMPServersUnsaved.value = null
     servers = emptyList()
+    serversAlreadyLoaded = false
   }
 
   LaunchedEffect(rhId) {
@@ -59,8 +58,9 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
       if (res != null) {
         currServers.value = res.protoServers
         presetServers = res.presetServers
-        if (servers.isEmpty()) {
+        if (servers.isEmpty() && !serversAlreadyLoaded) {
           servers = currServers.value
+          serversAlreadyLoaded = true
         }
       }
     }
@@ -80,13 +80,11 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
           newServers.add(index, updated)
           old = updated
           servers = newServers
-          m.userSMPServersUnsaved.value = servers
         },
         onDelete = {
           val newServers = ArrayList(servers)
           newServers.removeAt(index)
           servers = newServers
-          m.userSMPServersUnsaved.value = servers
           close()
         })
     }
@@ -125,7 +123,6 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
                     ScanProtocolServer(rhId) {
                       close()
                       servers = servers + it
-                      m.userSMPServersUnsaved.value = servers
                     }
                   }
                 }
@@ -150,13 +147,11 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
         testServersJob.value = withLongRunningApi {
           testServers(testing, servers, m) {
             servers = it
-            m.userSMPServersUnsaved.value = servers
           }
         }
       },
       resetServers = {
-        servers = currServers.value ?: emptyList()
-        m.userSMPServersUnsaved.value = null
+        servers = currServers.value
       },
       saveSMPServers = {
         saveServers(rhId, serverProtocol, currServers, servers, m)
@@ -355,7 +350,6 @@ private fun saveServers(rhId: Long?, protocol: ServerProtocol, currServers: Muta
   withBGApi {
     if (m.controller.setUserProtoServers(rhId, protocol, servers)) {
       currServers.value = servers
-      m.userSMPServersUnsaved.value = null
     }
     afterSave()
   }

apps/multiplatform/common/src/commonMain/resources/MR/ar/strings.xml

@@ -1588,8 +1588,6 @@
     <string name="remote_ctrl_error_busy">سطح المكتب مشغول</string>
     <string name="remote_ctrl_error_bad_version">يحتوي سطح المكتب على إصدار غير مدعوم. يُرجى التأكد من استخدام نفس الإصدار على كلا الجهازين</string>
     <string name="past_member_vName">العضو السابق %1$s</string>
-    <string name="possible_deadlock_title">مأزق</string>
-    <string name="possible_deadlock_desc">يستغرق تنفيذ التعليمات البرمجية وقتًا طويلاً جدًا: %1$d ثانية. من المحتمل أن التطبيق مجمّد: %2$s</string>
     <string name="possible_slow_function_title">وظيفة بطيئة</string>
     <string name="developer_options_section">خيارات المطور</string>
     <string name="profile_update_event_member_name_changed">تغيّر العضو %1$s إلى %2$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -16,6 +16,7 @@
 
   <!-- MainActivity.kt -->
   <string name="opening_database">Opening database…</string>
+  <string name="database_migration_in_progress">Database migration is in progress.\nIt may take a few minutes.</string>
   <string name="non_content_uri_alert_title">Invalid file path</string>
   <string name="non_content_uri_alert_text">You shared an invalid file path. Report the issue to the app developers.</string>
   <string name="app_was_crashed">View crashed</string>
@@ -146,8 +147,6 @@
   <string name="smp_server_test_delete_file">Delete file</string>
   <string name="error_deleting_user">Error deleting user profile</string>
   <string name="error_updating_user_privacy">Error updating user privacy</string>
-  <string name="possible_deadlock_title">Deadlock</string>
-  <string name="possible_deadlock_desc">Execution of code takes too long time: %1$d seconds. Probably, the app is frozen: %2$s</string>
   <string name="possible_slow_function_title">Slow function</string>
   <string name="possible_slow_function_desc">Execution of function takes too long time: %1$d seconds: %2$s</string>
 
@@ -1377,9 +1376,11 @@
   <!-- GroupWelcomeView.kt -->
   <string name="group_welcome_title">Welcome message</string>
   <string name="save_welcome_message_question">Save welcome message?</string>
+  <string name="welcome_message_is_too_long">Welcome message is too long</string>
   <string name="save_and_update_group_profile">Save and update group profile</string>
   <string name="group_welcome_preview">Preview</string>
   <string name="enter_welcome_message">Enter welcome message…</string>
+  <string name="message_too_large">Message too large</string>
 
   <!-- ConnectionStats -->
   <string name="conn_stats_section_title_servers">SERVERS</string>

apps/multiplatform/common/src/commonMain/resources/MR/bg/strings.xml

@@ -1555,7 +1555,6 @@
     <string name="chat_is_stopped_you_should_transfer_database">Чатът е спрян. Ако вече сте използвали тази база данни на друго устройство, трябва да я прехвърлите обратно, преди да стартирате чата отново.</string>
     <string name="remote_ctrl_error_bad_invitation">Настолното устройство има грешен код за връзка</string>
     <string name="remote_ctrl_error_bad_version">Настолното устройство е с неподдържана версия. Моля, уверете се, че използвате една и съща версия и на двете устройства</string>
-    <string name="possible_deadlock_desc">Изпълнението на кода отнема твърде много време: %1$d секунди. Вероятно приложението е замразено: %2$s</string>
     <string name="possible_slow_function_title">Бавна функция</string>
     <string name="possible_slow_function_desc">Изпълнението на функцията отнема твърде много време: %1$d секунди: %2$s</string>
     <string name="show_internal_errors">Покажи вътрешните грешки</string>
@@ -1591,5 +1590,4 @@
 \nПрепоръчително е да рестартирате приложението.</string>
     <string name="developer_options_section">Опции за разработчици</string>
     <string name="show_slow_api_calls">Показване на бавни API заявки</string>
-    <string name="possible_deadlock_title">Грешка в заключено положение</string>
 </resources>

apps/multiplatform/common/src/commonMain/resources/MR/de/strings.xml

@@ -1672,9 +1672,7 @@
     <string name="possible_slow_function_title">Langsame Funktion</string>
     <string name="show_slow_api_calls">Zeige langsame API-Aufrufe an</string>
     <string name="group_member_status_unknown_short">unbekannt</string>
-    <string name="possible_deadlock_title">Blockade</string>
     <string name="developer_options_section">Optionen für Entwickler</string>
-    <string name="possible_deadlock_desc">Die Code-Ausführung dauert zu lange: %1$d Sekunden. Wahrscheinlich ist die App eingefroren: %2$s</string>
     <string name="group_member_status_unknown">unbekannter Gruppenmitglieds-Status</string>
     <string name="v5_5_private_notes_descr">Mit verschlüsselten Dateien und Medien.</string>
     <string name="v5_5_private_notes">Private Notizen</string>

apps/multiplatform/common/src/commonMain/resources/MR/fr/strings.xml

@@ -1559,11 +1559,9 @@
     <string name="remote_host_error_bad_state"><![CDATA[État médiocre de la connexion au mobile <b>%s</b>.]]></string>
     <string name="remote_ctrl_was_disconnected_title">Connexion interrompue</string>
     <string name="remote_ctrl_error_bad_state">État médiocre de la connexion avec le bureau</string>
-    <string name="possible_deadlock_title">Impasse</string>
     <string name="remote_ctrl_error_bad_version">La version de l\'ordinateur de bureau n\'est pas prise en charge. Veillez à utiliser la même version sur les deux appareils.</string>
     <string name="remote_ctrl_error_disconnected">Le bureau a été déconnecté</string>
     <string name="developer_options_section">Options pour les développeurs</string>
-    <string name="possible_deadlock_desc">Le code prend trop de temps à s\'exécuter : %1$d secondes. Il est probable que l\'application soit figée : %2$s</string>
     <string name="agent_internal_error_title">Erreur interne</string>
     <string name="remote_host_error_bad_version"><![CDATA[La version du mobile <b>%s</b> n\'est pas prise en charge. Veillez à utiliser la même version sur les deux appareils.]]></string>
     <string name="show_internal_errors">Afficher les erreurs internes</string>

apps/multiplatform/common/src/commonMain/resources/MR/hu/strings.xml

@@ -1583,9 +1583,7 @@
     <string name="possible_slow_function_title">Lassú funkció</string>
     <string name="show_slow_api_calls">Lassú API-hívások megjelenítése</string>
     <string name="remote_host_error_inactive"><![CDATA[A(z) <b>%s</b> mobil eszköz inaktív]]></string>
-    <string name="possible_deadlock_title">Elakadt</string>
     <string name="developer_options_section">Fejlesztői beállítások</string>
-    <string name="possible_deadlock_desc">A kód végrehajtása túl sokáig tart: %1$d másodperc. Valószínűleg az alkalmazás lefagyott: %2$s</string>
     <string name="possible_slow_function_desc">A funkció végrehajtása túl sokáig tart: %1$d másodperc: %2$s</string>
     <string name="remote_host_error_busy"><![CDATA[A(z) <b>%s</b> mobil eszköz elfoglalt]]></string>
     <string name="past_member_vName">Legutóbbi tag %1$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/it/strings.xml

@@ -1591,9 +1591,7 @@
     <string name="possible_slow_function_title">Funzione lenta</string>
     <string name="show_slow_api_calls">Mostra chiamate API lente</string>
     <string name="group_member_status_unknown_short">sconosciuto</string>
-    <string name="possible_deadlock_desc">L\'esecuzione del codice impiega troppo tempo: %1$d secondi. Probabilmente l\'app è congelata: %2$s</string>
     <string name="group_member_status_unknown">stato sconosciuto</string>
-    <string name="possible_deadlock_title">Stallo</string>
     <string name="developer_options_section">Opzioni sviluppatore</string>
     <string name="v5_5_private_notes">Note private</string>
     <string name="v5_5_new_interface_languages">Interfaccia in ungherese e turco</string>

apps/multiplatform/common/src/commonMain/resources/MR/ja/strings.xml

@@ -1571,9 +1571,7 @@
     <string name="remote_ctrl_error_busy">PC版が処理中</string>
     <string name="remote_ctrl_error_disconnected">PC版が切断されました</string>
     <string name="remote_ctrl_error_bad_version">ご利用のPC版のバージョンがサポートされてません。両端末が同じバージョンかどうか、ご確認ください。</string>
-    <string name="possible_deadlock_title">デッドロック状態</string>
     <string name="developer_options_section">開発者向けの設定</string>
-    <string name="possible_deadlock_desc">処理時間が異常にかかるようです: %1$d 秒。アプリが固まった恐れがあります: %2$s</string>
     <string name="remote_host_error_busy"><![CDATA[携帯版 <b>%s</b> がただいま処理中]]></string>
     <string name="possible_slow_function_desc">機能の処理時間が以上にかかってます: %1$d 秒: %2$s</string>
     <string name="show_internal_errors">内部エラーを表示</string>

apps/multiplatform/common/src/commonMain/resources/MR/nl/strings.xml

@@ -1574,7 +1574,6 @@
     <string name="remote_host_error_missing"><![CDATA[Mobiel <b>%s</b> ontbreekt]]></string>
     <string name="remote_host_error_bad_state"><![CDATA[De verbinding met de mobiel <b>%s</b> is in slechte staat]]></string>
     <string name="remote_ctrl_error_disconnected">De verbinding met desktop is verbroken</string>
-    <string name="possible_deadlock_title">Impasse</string>
     <string name="possible_slow_function_desc">Uitvoering van functie duurt te lang: %1$d seconden: %2$s</string>
     <string name="possible_slow_function_title">Langzame functie</string>
     <string name="developer_options_section">Ontwikkelaars opties</string>
@@ -1588,7 +1587,6 @@
     <string name="restart_chat_button">Chat opnieuw starten</string>
     <string name="remote_host_error_timeout"><![CDATA[Time-out bereikt tijdens het verbinden met de mobiel <b>%s</b>]]></string>
     <string name="remote_ctrl_error_bad_state">De verbinding met de desktop is in slechte staat</string>
-    <string name="possible_deadlock_desc">Het uitvoeren van de code duurt te lang: %1$d seconden. Waarschijnlijk is de app vastgelopen: %2$s</string>
     <string name="remote_ctrl_error_bad_invitation">Desktop heeft verkeerde uitnodigingscode</string>
     <string name="remote_host_error_bad_version"><![CDATA[Mobiel <b>%s</b> heeft een niet-ondersteunde versie. Zorg ervoor dat u op beide apparaten dezelfde versie gebruikt]]></string>
     <string name="remote_ctrl_error_timeout">Time-out bereikt tijdens het verbinden met de desktop</string>

apps/multiplatform/common/src/commonMain/resources/MR/pl/strings.xml

@@ -1606,7 +1606,6 @@
     <string name="remote_ctrl_error_bad_version">Komputer ma niewspieraną wersję. Proszę upewnić się, że używasz tych samych wersji na obu urządzeniach</string>
     <string name="blocked_by_admin_items_description">%d wiadomości zablokowanych przez admina</string>
     <string name="error_creating_message">Błąd tworzenia wiadomości</string>
-    <string name="possible_deadlock_desc">Wykonanie kodu zajmuje za dużo czasu: %1$d sekund. Prawdopodobnie aplikacja jest zamrożona: %2$s</string>
     <string name="possible_slow_function_desc">Wykonanie kodu zajmuje za dużo czasu: %1$d sekund: %2$s</string>
     <string name="note_folder_local_display_name">Prywatne notatki</string>
     <string name="group_member_status_unknown">nieznany status</string>
@@ -1621,7 +1620,6 @@
     <string name="remote_host_error_inactive"><![CDATA[Telefon <b>%s</b> jest nieaktywny]]></string>
     <string name="remote_host_error_bad_version"><![CDATA[Telefon <b>%s</b> ma niewspieraną wersję. Proszę, upewnij się, że używasz tej samej wersji na obydwu urządzeniach]]></string>
     <string name="group_member_status_unknown_short">nieznany</string>
-    <string name="possible_deadlock_title">Blokada</string>
     <string name="profile_update_event_contact_name_changed">kontakt %1$s zmieniony na %2$s</string>
     <string name="profile_update_event_removed_address">usunięto adres kontaktu</string>
     <string name="profile_update_event_removed_picture">usunięto zdjęcie profilu</string>

apps/multiplatform/common/src/commonMain/resources/MR/ru/strings.xml

@@ -1680,8 +1680,6 @@
     <string name="error_showing_message">ошибка отображения сообщения</string>
     <string name="error_showing_content">ошибка отображения содержания</string>
     <string name="remote_ctrl_disconnected_with_reason">Отсоединён по причине: %s</string>
-    <string name="possible_deadlock_title">Взаимная блокировка</string>
-    <string name="possible_deadlock_desc">Выполнение задачи занимает долгое время: %1$d секунд. Возможно, приложение заблокировано: %2$s</string>
     <string name="possible_slow_function_desc">Выполнение задачи занимает долгое время: %1$d секунд: %2$s</string>
     <string name="possible_slow_function_title">Медленный вызов</string>
     <string name="profile_update_event_contact_name_changed">контакт %1$s изменён на %2$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/zh-rCN/strings.xml

@@ -1586,8 +1586,6 @@
     <string name="remote_host_error_bad_state"><![CDATA[到移动主机 <b>%s</b>的连接状态不佳]]></string>
     <string name="remote_host_error_timeout"><![CDATA[连接到移动主机<b>%s</b>时超时]]></string>
     <string name="failed_to_create_user_invalid_desc">显示名无效。请另选一个名称。</string>
-    <string name="possible_deadlock_title">死锁</string>
-    <string name="possible_deadlock_desc">代码执行花费的时间过久：%1$d秒。应用可能卡住了：%2$s</string>
     <string name="possible_slow_function_title">慢函数</string>
     <string name="show_slow_api_calls">显示缓慢的 API 调用</string>
     <string name="past_member_vName">过往成员 %1$s</string>

apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/DesktopApp.kt

@@ -14,8 +14,7 @@ import androidx.compose.ui.input.key.*
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.*
-import chat.simplex.common.model.ChatController
-import chat.simplex.common.model.ChatModel
+import chat.simplex.common.model.*
 import chat.simplex.common.platform.*
 import chat.simplex.common.ui.theme.DEFAULT_START_MODAL_WIDTH
 import chat.simplex.common.ui.theme.SimpleXTheme
@@ -40,7 +39,8 @@ fun showApp() {
           WindowExceptionHandler { e ->
             AlertManager.shared.showAlertMsg(
               title = generalGetString(MR.strings.app_was_crashed),
-              text = e.stackTraceToString()
+              text = e.stackTraceToString(),
+              shareText = true
             )
             Log.e(TAG, "App crashed, thread name: " + Thread.currentThread().name + ", exception: " + e.stackTraceToString())
             window.dispatchEvent(WindowEvent(window, WindowEvent.WINDOW_CLOSING))

apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/chat/item/ChatItemView.desktop.kt

@@ -42,7 +42,7 @@ actual fun SaveContentItemAction(cItem: ChatItem, saveFileLauncher: FileChooserL
     }
     var fileSource = getLoadedFileSource(cItem.file)
     if (chatModel.connectedToRemote() && fileSource == null) {
-      withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+      withLongRunningApi(slow = 600_000) {
         cItem.file?.loadRemoteFile(true)
         fileSource = getLoadedFileSource(cItem.file)
         saveIfExists()
@@ -51,7 +51,7 @@ actual fun SaveContentItemAction(cItem: ChatItem, saveFileLauncher: FileChooserL
   })
 }
 
-actual fun copyItemToClipboard(cItem: ChatItem, clipboard: ClipboardManager) = withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+actual fun copyItemToClipboard(cItem: ChatItem, clipboard: ClipboardManager) = withLongRunningApi(slow = 600_000) {
   var fileSource = getLoadedFileSource(cItem.file)
   if (chatModel.connectedToRemote() && fileSource == null) {
     cItem.file?.loadRemoteFile(true)

apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/helpers/CustomTimePicker.desktop.kt

@@ -0,0 +1,80 @@
+package chat.simplex.common.views.helpers
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import chat.simplex.common.model.CustomTimeUnit
+import chat.simplex.common.ui.theme.DEFAULT_PADDING
+
+@Composable
+actual fun CustomTimePicker(
+  selection: MutableState<Int>,
+  timeUnitsLimits: List<TimeUnitLimits>
+) {
+  val unit = remember {
+    var res: CustomTimeUnit = CustomTimeUnit.Second
+    val found = timeUnitsLimits.asReversed().any {
+      if (selection.value >= it.minValue * it.timeUnit.toSeconds && selection.value <= it.maxValue * it.timeUnit.toSeconds) {
+        res = it.timeUnit
+        selection.value = (selection.value / it.timeUnit.toSeconds).coerceIn(it.minValue, it.maxValue) * it.timeUnit.toSeconds
+        true
+      } else {
+        false
+      }
+    }
+    if (!found) {
+      // If custom interval doesn't fit in any category, set it to 1 second interval
+      selection.value = 1
+    }
+    mutableStateOf(res)
+  }
+  val values = remember(unit.value) {
+    val limit = timeUnitsLimits.first { it.timeUnit == unit.value }
+    val res = ArrayList<Pair<Int, String>>()
+    for (i in limit.minValue..limit.maxValue) {
+      val seconds = i * limit.timeUnit.toSeconds
+      val desc = i.toString()
+      res.add(seconds to desc)
+    }
+    if (res.none { it.first == selection.value }) {
+      // Doesn't fit into min..max, put it equal to the closest value
+      selection.value = selection.value.coerceIn(res.first().first, res.last().first)
+      //selection.value = res.last { it.first <= selection.value }.first
+    }
+    res
+  }
+  val units = remember {
+    val res = ArrayList<Pair<CustomTimeUnit, String>>()
+    for (unit in timeUnitsLimits) {
+      res.add(unit.timeUnit to unit.timeUnit.text)
+    }
+    res
+  }
+
+  Row(
+    Modifier.padding(bottom = DEFAULT_PADDING),
+    verticalAlignment = Alignment.CenterVertically,
+    horizontalArrangement = Arrangement.SpaceEvenly
+  ) {
+    ExposedDropDownSetting(
+      values,
+      selection,
+      textColor = MaterialTheme.colors.onBackground,
+      enabled = remember { mutableStateOf(true) },
+      onSelected = { selection.value = it }
+    )
+    Spacer(Modifier.width(DEFAULT_PADDING))
+    ExposedDropDownSetting(
+      units,
+      unit,
+      textColor = MaterialTheme.colors.onBackground,
+      enabled = remember { mutableStateOf(true) },
+      onSelected = {
+        selection.value = selection.value / unit.value.toSeconds * it.toSeconds
+        unit.value = it
+      }
+    )
+  }
+}

apps/multiplatform/gradle.properties

@@ -25,11 +25,11 @@ android.nonTransitiveRClass=true
 android.enableJetifier=true
 kotlin.mpp.androidSourceSetLayoutVersion=2
 
-android.version_name=5.5
-android.version_code=175
+android.version_name=5.5.5
+android.version_code=185
 
-desktop.version_name=5.5
-desktop.version_code=26
+desktop.version_name=5.5.5
+desktop.version_code=31
 
 kotlin.version=1.8.20
 gradle.plugin.version=7.4.2

blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.md

@@ -0,0 +1,119 @@
+---
+layout: layouts/article.html
+title: "SimpleX Chat: free infrastructure from Linode, v5.5 released with private notes, group history and a simpler UX to connect."
+date: 2024-01-24
+previewBody: blog_previews/20240124.html
+image: images/20240124-connect1.png
+permalink: "/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html"
+---
+
+# SimpleX Chat: free infrastructure from Linode, v5.5 released with private notes, group history and a simpler UX to connect.
+
+**Published:** Jan 24, 2024
+
+[SimpleX Chat infrastructure on Linode](#simplex-chat-infrastructure-on-linode):
+- Free infrastructure.
+- SimpleX servers in Linode Marketplace.
+- High capacity messaging servers.
+
+What's new in v5.5:
+- [private notes](#private-notes)
+- [group history](#group-history)
+- [simpler UX to connect to other users](#simpler-ux-to-connect-to-other-users)
+- [message delivery stability and other improvements](#message-delivery-stability-and-other-improvements)
+
+Also, we added Hungarian (only Android) and Turkish interface languages, thanks to [our users and Weblate](https://github.com/simplex-chat/simplex-chat#help-translating-simplex-chat).
+
+SimpleX Chat Android app is now available in 20 languages!
+
+## SimpleX Chat infrastructure on Linode
+
+We chose Linode as our hosting provider as and they have been consistently reliable, cheaper than alternatives, with excellent support and great documentation.
+
+When Linode was acquired by Akamai, we were a bit nervous about how it may affect service quality. So far it's been working out quite well.
+
+As the usage of SimpleX network was growing, so did our hosting costs, and from being really small they started to become significant, particularly as we didn't yet manage to optimize the servers last year.
+
+Linode helped - we're really excited to announce that Akamai decided to support SimpleX Chat growth by accepting it into their [Linode Rise startup program](https://www.linode.com/linode-for-startups/).
+
+Thanks to this program:
+
+- we received free infrastructure for the first year up to $10,000 per month, no strings attached. It already saved us some money, and gave us enough time to optimize the servers - the latest version of the servers are much less costly to operate with the current traffic, and can support a much larger traffic within this limit. In the year 2 of the program we will receive 50% discount with unlimited traffic, and in year 3 - 25% discount.
+
+- Linode Marketplace now includes [SimpleX Chat messages and file servers](https://www.linode.com/marketplace/apps/simplex-chat/simplex-chat/) - you can get free $100 credits for the first 2 months and run your own servers in just a few clicks, and use them in SimpleX Chat apps. Anybody can submit their application to Linode marketplace, but dedicated support we have from Linode team via this program made it simpler.
+
+- Akamai solution engineers are helping us to design high capacity server solution, free of charge, so that a single host can provide horizontally scalable capacity for messaging, allowing for a much larger number of concurrent users on a single server address. Initially we considered using HAProxy, and the latest proof of concept uses OpenResty - a fork of Nginx with Lua script engine - to route requests from a single host to multiple SMP relays, reducing an overhead for the clients that would be configured with a smaller number of higher capacity servers. This project is still in progress, there will be more details as we roll it out.
+
+## What's new in v5.5
+
+### Private notes
+
+<img src="./images/20240124-notes1.png" width="220" class="float-to-left"> <img src="./images/20240124-notes2.png" width="220" class="float-to-left">
+
+*"Where do I put notes for myself?"* was a very common support question. There was a workaround - you could create an empty group, just with yourself, and use it to save notes, but it was not very convenient, and you could accidentally add members there.
+
+This version has a more convenient and private alternative - the Private notes. It looks like an ordinary conversation where you can put text messages, links with previews, and any media and files, but they are not sent anywhere - they are stored locally, only on your device, with encrypted files.
+
+You can access the Private notes created in mobile app from desktop app too, by linking a mobile and desktop apps - the feature [added in the previous version](./20231125-simplex-chat-v5-4-link-mobile-desktop-quantum-resistant-better-groups.md). It allows to conveniently share files between the devices without sending them over the Internet.
+
+### Group history
+
+<img src="./images/20240124-history1.png" width="220" class="float-to-left"> <img src="./images/20240124-history2.png" width="220" class="float-to-left">
+
+In the previous version, when users joined groups, they only saw an empty conversation, and the notifications of being connected to other members. This version allows group admins sending recent group history to the new members - this option is enabled by default for new groups, and can be enabled for the existing groups in the preferences. So now new members can join the conversation as soon as they join.
+
+This does not mean that these messages are stored on any servers - the admin member that adds a new member to the group sends these messages directly when a new member joins. Groups are still fully decentralized, do not have any identity on the network, and fully private - only their members know they exist.
+
+That is, unless a group owner decides to make it public. Groups can be registered in [SimpleX groups directory](https://simplex.chat/contact#/?v=1-4&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2FeXSPwqTkKyDO3px4fLf1wx3MvPdjdLW3%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAaiv6MkMH44L2TcYrt_CsX3ZvM11WgbMEUn0hkIKTOho%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion) to be discovered by the new members - group directory is also improved.
+
+### Simpler UX to connect to other users
+
+<img src="./images/20240124-connect1.png" width="220" class="float-to-left"> <img src="./images/20240124-connect2.png" width="220" class="float-to-left">
+
+SimpleX platform has no user accounts or identities, and while it improves metadata privacy, it also makes it harder to understand how to connect to other people, particularly for the new users who are not invited by the existing users.
+
+This version simplifies this interface by allowing to connect via the received link just by pasting the address into the search bar, as is common in many wallet apps and some other decentralized messengers. We also improved the interface of creating invitation links.
+
+We will continue working on improving and simplifying user interface throughout the year. Please send us any feedback and suggestions to the team's address available in the app.
+
+### Message delivery stability and other improvements
+
+One of the long standing issues was that message reception could get stuck in some rare occasions, and only get resumed once the app is fully restarted. As Android app includes an always-on notification service that runs in background, full restart should be done via the app settings.
+
+This version fixed many issues with message delivery stability and also added some diagnostics to identify any other cases when message delivery may stop. These fixes should also reduce battery usage, particularly on slow internet connections.
+
+Other improvements in this version:
+- you can now reveal secret messages by tapping. To send a secret message wrap in "#" characters, e.g. "\#password\#".
+- you can delete the last user profile, simplifying account deletion. If you have [hidden user profiles](./20230328-simplex-chat-v4-6-hidden-profiles.md), they won't be deleted in this case, and will be accessible again once you create a new profile.
+
+## SimpleX platform
+
+Some links to answer the most common questions:
+
+[How can SimpleX deliver messages without user identifiers](./20220511-simplex-chat-v2-images-files.md#the-first-messaging-platform-without-user-identifiers).
+
+[What are the risks to have identifiers assigned to the users](./20220711-simplex-chat-v3-released-ios-notifications-audio-video-calls-database-export-import-protocol-improvements.md#why-having-users-identifiers-is-bad-for-the-users).
+
+[Technical details and limitations](https://github.com/simplex-chat/simplex-chat#privacy-technical-details-and-limitations).
+
+[How SimpleX is different from Session, Matrix, Signal, etc.](https://github.com/simplex-chat/simplex-chat/blob/stable/README.md#frequently-asked-questions).
+
+Please also see our [website](https://simplex.chat).
+
+## Help us with donations
+
+Huge thank you to everybody who donated to SimpleX Chat!
+
+We are prioritizing users privacy and security - it would be impossible without your support.
+
+Our pledge to our users is that SimpleX protocols are and will remain open, and in public domain, - so anybody can build the future implementations of the clients and the servers. We are building SimpleX platform based on the same principles as email and web, but much more private and secure.
+
+Your donations help us raise more funds – any amount, even the price of the cup of coffee, makes a big difference for us.
+
+See [this section](https://github.com/simplex-chat/simplex-chat/tree/master#help-us-with-donations) for the ways to donate.
+
+Thank you,
+
+Evgeny
+
+SimpleX Chat founder

blog/README.md

@@ -1,5 +1,20 @@
 # Blog
 
+Jan 24, 2024 [SimpleX Chat: free infrastructure from Linode, v5.5 released](./20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.md)
+
+SimpleX Chat infrastructure on Linode:
+- Free infrastructure.
+- SimpleX servers in Linode Marketplace.
+- High capacity messaging servers.
+
+What's new in v5.5:
+- private notes.
+- group history.
+- simpler UX to connect to other users.
+- message delivery stability and other improvements.
+
+---
+
 Nov 25, 2023 [SimpleX Chat v5.4 released](./20231125-simplex-chat-v5-4-link-mobile-desktop-quantum-resistant-better-groups.md)
 
 - Link mobile and desktop apps via secure quantum-resistant protocol. 🔗

cabal.project

@@ -12,7 +12,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: 7a0cd8041bbb7d7ab2f089395a244dc4af0f9e3b
+    tag: b4c23520c73786b7c3ff539ff80b37f07ffe68d4
 
 source-repository-package
     type: git

docs/DOWNLOADS.md

@@ -1,13 +1,13 @@
 ---
 title: Download SimpleX apps
 permalink: /downloads/index.html
-revision: 25.11.2023
+revision: 11.02.2024
 ---
 
-| Updated 25.11.2023 | Languages: EN |
+| Updated 11.02.2024 | Languages: EN |
 # Download SimpleX apps
 
-The latest stable version is v5.5.
+The latest stable version is v5.5.3.
 
 You can get the latest beta releases from [GitHub](https://github.com/simplex-chat/simplex-chat/releases).
 
@@ -21,24 +21,24 @@ You can get the latest beta releases from [GitHub](https://github.com/simplex-ch
 
 Using the same profile as on mobile device is not yet supported – you need to create a separate profile to use desktop apps.
 
-**Linux**: [AppImage](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-x86_64.AppImage) (most Linux distros), [Ubuntu 20.04](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-ubuntu-20_04-x86_64.deb) (and Debian-based distros), [Ubuntu 22.04](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-ubuntu-22_04-x86_64.deb).
+**Linux**: [AppImage](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-x86_64.AppImage) (most Linux distros), [Ubuntu 20.04](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-ubuntu-20_04-x86_64.deb) (and Debian-based distros), [Ubuntu 22.04](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-ubuntu-22_04-x86_64.deb).
 
-**Mac**: [x86_64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-macos-x86_64.dmg) (Intel), [aarch64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-macos-aarch64.dmg) (Apple Silicon).
+**Mac**: [aarch64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-macos-aarch64.dmg) (Apple Silicon), [x86_64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-macos-x86_64.dmg) (Intel).
 
-**Windows**: [x86_64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-desktop-windows-x86_64.msi).
+**Windows**: [x86_64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-desktop-windows-x86_64.msi).
 
 ## Mobile apps
 
 **iOS**: [App store](https://apps.apple.com/us/app/simplex-chat/id1605771084), [TestFlight](https://testflight.apple.com/join/DWuT2LQu).
 
-**Android**: [Play store](https://play.google.com/store/apps/details?id=chat.simplex.app), [F-Droid](https://simplex.chat/fdroid/), [APK aarch64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex.apk), [APK armv7](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-armv7a.apk).
+**Android**: [Play store](https://play.google.com/store/apps/details?id=chat.simplex.app), [F-Droid](https://simplex.chat/fdroid/), [APK aarch64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex.apk), [APK armv7](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-armv7a.apk).
 
 ## Terminal (console) app
 
 See [Using terminal app](/docs/CLI.md).
 
-**Linux**: [Ubuntu 20.04](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-chat-ubuntu-20_04-x86-64), [Ubuntu 22.04](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-chat-ubuntu-22_04-x86-64).
+**Linux**: [Ubuntu 20.04](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-chat-ubuntu-20_04-x86-64), [Ubuntu 22.04](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-chat-ubuntu-22_04-x86-64).
 
-**Mac** [x86_64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-chat-macos-x86-64), aarch64 - [compile from source](/docs/CLI.md#).
+**Mac** [x86_64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-chat-macos-x86-64), aarch64 - [compile from source](/docs/CLI.md#).
 
-**Windows**: [x86_64](https://github.com/simplex-chat/simplex-chat/releases/download/v5.5.0/simplex-chat-windows-x86-64).
+**Windows**: [x86_64](https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-chat-windows-x86-64).

flake.nix

@@ -385,6 +385,7 @@
                   "chat_send_cmd"
                   "chat_send_remote_cmd"
                   "chat_valid_name"
+                  "chat_json_length"
                   "chat_write_file"
                 ];
                 postInstall = ''
@@ -487,6 +488,7 @@
                   "chat_send_cmd"
                   "chat_send_remote_cmd"
                   "chat_valid_name"
+                  "chat_json_length"
                   "chat_write_file"
                 ];
                 postInstall = ''

libsimplex.dll.def

@@ -12,6 +12,7 @@ EXPORTS
     chat_parse_server
     chat_password_hash
     chat_valid_name
+    chat_json_length
     chat_encrypt_media
     chat_decrypt_media
     chat_write_file

package.yaml

@@ -1,5 +1,5 @@
 name: simplex-chat
-version: 5.5.0.4
+version: 5.5.5.0
 #synopsis:
 #description:
 homepage: https://github.com/simplex-chat/simplex-chat#readme
@@ -36,7 +36,6 @@ dependencies:
   - network >= 3.1.2.7 && < 3.2
   - network-transport == 0.5.6
   - optparse-applicative >= 0.15 && < 0.17
-  - process == 1.6.*
   - random >= 1.1 && < 1.3
   - record-hasfield == 1.0.*
   - simple-logger == 0.1.*
@@ -64,11 +63,13 @@ when:
   - condition: impl(ghc >= 9.6.2)
     dependencies:
       - bytestring == 0.11.*
+      - process == 1.6.*
       - template-haskell == 2.20.*
       - text >= 2.0.1 && < 2.2
   - condition: impl(ghc < 9.6.2)
     dependencies:
       - bytestring == 0.10.*
+      - process >= 1.6 && < 1.6.18
       - template-haskell == 2.16.*
       - text >= 1.2.3.0 && < 1.3
 
@@ -125,13 +126,19 @@ tests:
       - apps/simplex-broadcast-bot/src
       - apps/simplex-directory-service/src
     main: Test.hs
+    when:
+      - condition: impl(ghc >= 9.6.2)
+        dependencies:
+          - hspec == 2.11.*
+      - condition: impl(ghc < 9.6.2)
+        dependencies:
+          - hspec == 2.7.*
     dependencies:
       - QuickCheck == 2.14.*
       - simplex-chat
       - async == 2.2.*
       - deepseq == 1.4.*
       - generic-random == 1.5.*
-      - hspec == 2.11.*
       - network == 3.1.*
       - silently == 1.2.*
       - stm == 2.5.*

packages/simplex-chat-client/typescript/src/command.ts

@@ -12,7 +12,6 @@ export type ChatCommand =
   | APIStopChat
   | SetTempFolder
   | SetFilesFolder
-  | APISetXFTPConfig
   | SetIncognito
   | APIExportArchive
   | APIImportArchive
@@ -112,7 +111,6 @@ type ChatCommandTag =
   | "apiStopChat"
   | "setTempFolder"
   | "setFilesFolder"
-  | "apiSetXFTPConfig"
   | "setIncognito"
   | "apiExportArchive"
   | "apiImportArchive"
@@ -242,15 +240,6 @@ export interface SetFilesFolder extends IChatCommand {
   filePath: string
 }
 
-export interface APISetXFTPConfig extends IChatCommand {
-  type: "apiSetXFTPConfig"
-  config?: XFTPFileConfig
-}
-
-export interface XFTPFileConfig {
-  minFileSize: number
-}
-
 export interface SetIncognito extends IChatCommand {
   type: "setIncognito"
   incognito: boolean
@@ -707,8 +696,6 @@ export function cmdString(cmd: ChatCommand): string {
       return `/_temp_folder ${cmd.tempFolder}`
     case "setFilesFolder":
       return `/_files_folder ${cmd.filePath}`
-    case "apiSetXFTPConfig":
-      return `/_xftp ${onOff(cmd.config)}${maybeJSON(cmd.config)}`
     case "setIncognito":
       return `/incognito ${onOff(cmd.incognito)}`
     case "apiExportArchive":

scripts/desktop/build-lib-linux.sh

@@ -20,6 +20,10 @@ root_dir="$(dirname "$(dirname "$(readlink "$0")")")"
 cd $root_dir
 BUILD_DIR=dist-newstyle/build/$ARCH-$OS/ghc-${GHC_VERSION}/simplex-chat-*
 
+exports=( $(sed 's/foreign export ccall "chat_migrate_init_key"//' src/Simplex/Chat/Mobile.hs | sed 's/foreign export ccall "chat_reopen_store"//' |grep "foreign export ccall" | cut -d '"' -f2) )
+for elem in "${exports[@]}"; do count=$(grep -R "$elem$" libsimplex.dll.def | wc -l); if [ $count -ne 1 ]; then echo Wrong exports in libsimplex.dll.def. Add \"$elem\" to that file; exit 1; fi ; done
+for elem in "${exports[@]}"; do count=$(grep -R "\"$elem\"" flake.nix | wc -l); if [ $count -ne 2 ]; then echo Wrong exports in flake.nix. Add \"$elem\" in two places of the file; exit 1; fi ; done
+
 rm -rf $BUILD_DIR
 cabal build lib:simplex-chat --ghc-options='-optl-Wl,-rpath,$ORIGIN -flink-rts -threaded'
 cd $BUILD_DIR/build

scripts/desktop/build-lib-mac.sh

@@ -19,6 +19,10 @@ GHC_LIBS_DIR=$(ghc --print-libdir)
 
 BUILD_DIR=dist-newstyle/build/$ARCH-*/ghc-*/simplex-chat-*
 
+exports=( $(sed 's/foreign export ccall "chat_migrate_init_key"//' src/Simplex/Chat/Mobile.hs | sed 's/foreign export ccall "chat_reopen_store"//' |grep "foreign export ccall" | cut -d '"' -f2) )
+for elem in "${exports[@]}"; do count=$(grep -R "$elem$" libsimplex.dll.def | wc -l); if [ $count -ne 1 ]; then echo Wrong exports in libsimplex.dll.def. Add \"$elem\" to that file; exit 1; fi ; done
+for elem in "${exports[@]}"; do count=$(grep -R "\"$elem\"" flake.nix | wc -l); if [ $count -ne 2 ]; then echo Wrong exports in flake.nix. Add \"$elem\" in two places of the file; exit 1; fi ; done
+
 rm -rf $BUILD_DIR
 cabal build lib:simplex-chat lib:simplex-chat --ghc-options="-optl-Wl,-rpath,@loader_path -optl-Wl,-L$GHC_LIBS_DIR/$ARCH-osx-ghc-$GHC_VERSION -optl-lHSrts_thr-ghc$GHC_VERSION -optl-lffi"
 

scripts/desktop/build-lib-windows.sh

@@ -17,6 +17,10 @@ fi
 
 BUILD_DIR=dist-newstyle/build/$ARCH-$OS/ghc-*/simplex-chat-*
 
+exports=( $(sed 's/foreign export ccall "chat_migrate_init_key"//' src/Simplex/Chat/Mobile.hs | sed 's/foreign export ccall "chat_reopen_store"//' |grep "foreign export ccall" | cut -d '"' -f2) )
+for elem in "${exports[@]}"; do count=$(grep -R "$elem$" libsimplex.dll.def | wc -l); if [ $count -ne 1 ]; then echo Wrong exports in libsimplex.dll.def. Add \"$elem\" to that file; exit 1; fi ; done
+for elem in "${exports[@]}"; do count=$(grep -R "\"$elem\"" flake.nix | wc -l); if [ $count -ne 2 ]; then echo Wrong exports in flake.nix. Add \"$elem\" in two places of the file; exit 1; fi ; done
+
 # IMPORTANT: in order to get a working build you should use x86_64 MinGW with make, cmake, gcc.
 # 100% working MinGW is https://github.com/brechtsanders/winlibs_mingw/releases/download/13.1.0-16.0.5-11.0.0-ucrt-r5/winlibs-x86_64-posix-seh-gcc-13.1.0-mingw-w64ucrt-11.0.0-r5.zip
 # Many other distributions I tested don't work in some cases or don't have required tools.

scripts/nix/sha256map.nix

@@ -1,5 +1,5 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."7a0cd8041bbb7d7ab2f089395a244dc4af0f9e3b" = "0jxf9dnsg14ffd1y3i7md2ninrds4daq1fmpnd6j5z99im07ns52";
+  "https://github.com/simplex-chat/simplexmq.git"."b4c23520c73786b7c3ff539ff80b37f07ffe68d4" = "171i6b0jhp97qr6va22j2z57ibjn0nd5wfifi7bqa67mjhc16lwp";
   "https://github.com/simplex-chat/hs-socks.git"."a30cc7a79a08d8108316094f8f2f82a0c5e1ac51" = "0yasvnr7g91k76mjkamvzab2kvlb1g5pspjyjn2fr6v83swjhj38";
   "https://github.com/simplex-chat/direct-sqlcipher.git"."f814ee68b16a9447fbb467ccc8f29bdd3546bfd9" = "1ql13f4kfwkbaq7nygkxgw84213i0zm7c1a8hwvramayxl38dq5d";
   "https://github.com/simplex-chat/sqlcipher-simple.git"."a46bd361a19376c5211f1058908fc0ae6bf42446" = "1z0r78d8f0812kxbgsm735qf6xx8lvaz27k1a0b4a2m0sshpd5gl";

simplex-chat.cabal

@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           simplex-chat
-version:        5.5.0.4
+version:        5.5.5.0
 category:       Web, System, Services, Cryptography
 homepage:       https://github.com/simplex-chat/simplex-chat#readme
 author:         simplex.chat
@@ -197,7 +197,6 @@ library
     , network >=3.1.2.7 && <3.2
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -217,11 +216,13 @@ library
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -256,7 +257,6 @@ executable simplex-bot
     , network >=3.1.2.7 && <3.2
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -277,11 +277,13 @@ executable simplex-bot
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -316,7 +318,6 @@ executable simplex-bot-advanced
     , network >=3.1.2.7 && <3.2
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -337,11 +338,13 @@ executable simplex-bot-advanced
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -378,7 +381,6 @@ executable simplex-broadcast-bot
     , network >=3.1.2.7 && <3.2
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -399,11 +401,13 @@ executable simplex-broadcast-bot
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -439,7 +443,6 @@ executable simplex-chat
     , network ==3.1.*
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -461,11 +464,13 @@ executable simplex-chat
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -505,7 +510,6 @@ executable simplex-directory-service
     , network >=3.1.2.7 && <3.2
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , simple-logger ==0.1.*
@@ -526,11 +530,13 @@ executable simplex-directory-service
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
 
@@ -592,7 +598,6 @@ test-suite simplex-chat-test
     , exceptions ==0.10.*
     , filepath ==1.4.*
     , generic-random ==1.5.*
-    , hspec ==2.11.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
     , memory ==0.18.*
@@ -600,7 +605,6 @@ test-suite simplex-chat-test
     , network ==3.1.*
     , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
-    , process ==1.6.*
     , random >=1.1 && <1.3
     , record-hasfield ==1.0.*
     , silently ==1.2.*
@@ -622,10 +626,18 @@ test-suite simplex-chat-test
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
+      , process ==1.6.*
       , template-haskell ==2.20.*
       , text >=2.0.1 && <2.2
   if impl(ghc < 9.6.2)
     build-depends:
         bytestring ==0.10.*
+      , process >=1.6 && <1.6.18
       , template-haskell ==2.16.*
       , text >=1.2.3.0 && <1.3
+  if impl(ghc >= 9.6.2)
+    build-depends:
+        hspec ==2.11.*
+  if impl(ghc < 9.6.2)
+    build-depends:
+        hspec ==2.7.*

src/Simplex/Chat.hs

@@ -81,7 +81,7 @@ import Simplex.Chat.Types.Util
 import Simplex.Chat.Util (encryptFile, shuffle)
 import Simplex.FileTransfer.Client.Main (maxFileSize)
 import Simplex.FileTransfer.Client.Presets (defaultXFTPServers)
-import Simplex.FileTransfer.Description (ValidFileDescription, gb, kb, mb)
+import Simplex.FileTransfer.Description (ValidFileDescription)
 import Simplex.FileTransfer.Protocol (FileParty (..), FilePartyI)
 import Simplex.Messaging.Agent as Agent
 import Simplex.Messaging.Agent.Client (AgentStatsKey (..), SubInfo (..), agentClientStore, getAgentWorkersDetails, getAgentWorkersSummary, temporaryAgentError)
@@ -142,8 +142,6 @@ defaultChatConfig =
       xftpDescrPartSize = 14000,
       inlineFiles = defaultInlineFilesConfig,
       autoAcceptFileSize = 0,
-      xftpFileConfig = Just defaultXFTPFileConfig,
-      tempDir = Nothing,
       showReactions = False,
       showReceipts = False,
       logLevel = CLLImportant,
@@ -201,7 +199,7 @@ newChatController :: ChatDatabase -> Maybe User -> ChatConfig -> ChatOpts -> Boo
 newChatController
   ChatDatabase {chatStore, agentStore}
   user
-  cfg@ChatConfig {agentConfig = aCfg, defaultServers, inlineFiles, tempDir, deviceNameForRemote}
+  cfg@ChatConfig {agentConfig = aCfg, defaultServers, inlineFiles, deviceNameForRemote}
   ChatOpts {coreOptions = CoreChatOpts {smpServers, xftpServers, networkConfig, logLevel, logConnections, logServerHosts, logFile, tbqSize, highlyAvailable}, deviceName, optFilesFolder, showReactions, allowInstantFiles, autoAcceptFileSize}
   backgroundMode = do
     let inlineFiles' = if allowInstantFiles || autoAcceptFileSize > 0 then inlineFiles else inlineFiles {sendChunks = 0, receiveInstant = False}
@@ -236,8 +234,7 @@ newChatController
     chatActivated <- newTVarIO True
     showLiveItems <- newTVarIO False
     encryptLocalFiles <- newTVarIO False
-    userXFTPFileConfig <- newTVarIO $ xftpFileConfig cfg
-    tempDirectory <- newTVarIO tempDir
+    tempDirectory <- newTVarIO Nothing
     contactMergeEnabled <- newTVarIO True
     pure
       ChatController
@@ -272,7 +269,6 @@ newChatController
           chatActivated,
           showLiveItems,
           encryptLocalFiles,
-          userXFTPFileConfig,
           tempDirectory,
           logFilePath = logFile,
           contactMergeEnabled
@@ -582,9 +578,6 @@ processChatCommand' vr = \case
     createDirectoryIfMissing True rf
     chatWriteVar remoteHostsFolder $ Just rf
     ok_
-  APISetXFTPConfig cfg -> do
-    asks userXFTPFileConfig >>= atomically . (`writeTVar` cfg)
-    ok_
   APISetEncryptLocalFiles on -> chatWriteVar encryptLocalFiles on >> ok_
   SetContactMergeEnabled onOff -> do
     asks contactMergeEnabled >>= atomically . (`writeTVar` onOff)
@@ -645,7 +638,7 @@ processChatCommand' vr = \case
           memStatuses -> pure $ Just $ map (uncurry MemberDeliveryStatus) memStatuses
       _ -> pure Nothing
     pure $ CRChatItemInfo user aci ChatItemInfo {itemVersions, memberDeliveryStatuses}
-  APISendMessage (ChatRef cType chatId) live itemTTL (ComposedMessage file_ quotedItemId_ mc) -> withUser $ \user@User {userId} -> withChatLock "sendMessage" $ case cType of
+  APISendMessage (ChatRef cType chatId) live itemTTL (ComposedMessage file_ quotedItemId_ mc) -> withUser $ \user -> withChatLock "sendMessage" $ case cType of
     CTDirect -> do
       ct@Contact {contactId, contactUsed} <- withStore $ \db -> getContact db user chatId
       assertDirectAllowed user MDSnd ct XMsgNew_
@@ -653,45 +646,19 @@ processChatCommand' vr = \case
       if isVoice mc && not (featureAllowed SCFVoice forUser ct)
         then pure $ chatCmdError (Just user) ("feature not allowed " <> T.unpack (chatFeatureNameText CFVoice))
         else do
-          (fInv_, ciFile_, ft_) <- unzipMaybe3 <$> setupSndFileTransfer ct
+          (fInv_, ciFile_) <- L.unzip <$> setupSndFileTransfer ct
           timed_ <- sndContactCITimed live ct itemTTL
           (msgContainer, quotedItem_) <- prepareMsg fInv_ timed_
-          (msg@SndMessage {sharedMsgId}, _) <- sendDirectContactMessage ct (XMsgNew msgContainer)
+          (msg, _) <- sendDirectContactMessage ct (XMsgNew msgContainer)
           ci <- saveSndChatItem' user (CDDirectSnd ct) msg (CISndMsgContent mc) ciFile_ quotedItem_ timed_ live
-          case ft_ of
-            Just ft@FileTransferMeta {fileInline = Just IFMSent} ->
-              sendDirectFileInline ct ft sharedMsgId
-            _ -> pure ()
           forM_ (timed_ >>= timedDeleteAt') $
             startProximateTimedItemThread user (ChatRef CTDirect contactId, chatItemId' ci)
           pure $ CRNewChatItem user (AChatItem SCTDirect SMDSnd (DirectChat ct) ci)
       where
-        setupSndFileTransfer :: Contact -> m (Maybe (FileInvitation, CIFile 'MDSnd, FileTransferMeta))
+        setupSndFileTransfer :: Contact -> m (Maybe (FileInvitation, CIFile 'MDSnd))
         setupSndFileTransfer ct = forM file_ $ \file -> do
-          (fileSize, fileMode) <- checkSndFile mc file 1
-          case fileMode of
-            SendFileSMP fileInline -> smpSndFileTransfer file fileSize fileInline
-            SendFileXFTP -> xftpSndFileTransfer user file fileSize 1 $ CGContact ct
-          where
-            smpSndFileTransfer :: CryptoFile -> Integer -> Maybe InlineFileMode -> m (FileInvitation, CIFile 'MDSnd, FileTransferMeta)
-            smpSndFileTransfer (CryptoFile _ (Just _)) _ _ = throwChatError $ CEFileInternal "locally encrypted files can't be sent via SMP" -- can only happen if XFTP is disabled
-            smpSndFileTransfer (CryptoFile file Nothing) fileSize fileInline = do
-              subMode <- chatReadVar subscriptionMode
-              (agentConnId_, fileConnReq) <-
-                if isJust fileInline
-                  then pure (Nothing, Nothing)
-                  else bimap Just Just <$> withAgent (\a -> createConnection a (aUserId user) True SCMInvitation Nothing subMode)
-              let fileName = takeFileName file
-                  fileInvitation = FileInvitation {fileName, fileSize, fileDigest = Nothing, fileConnReq, fileInline, fileDescr = Nothing}
-              chSize <- asks $ fileChunkSize . config
-              withStore $ \db -> do
-                ft@FileTransferMeta {fileId} <- liftIO $ createSndDirectFileTransfer db userId ct file fileInvitation agentConnId_ chSize subMode
-                fileStatus <- case fileInline of
-                  Just IFMSent -> createSndDirectInlineFT db ct ft $> CIFSSndTransfer 0 1
-                  _ -> pure CIFSSndStored
-                let fileSource = Just $ CF.plain file
-                    ciFile = CIFile {fileId, fileName, fileSize, fileSource, fileStatus, fileProtocol = FPSMP}
-                pure (fileInvitation, ciFile, ft)
+          fileSize <- checkSndFile file
+          xftpSndFileTransfer user file fileSize 1 $ CGContact ct
         prepareMsg :: Maybe FileInvitation -> Maybe CITimed -> m (MsgContainer, Maybe (CIQuote 'CTDirect))
         prepareMsg fInv_ timed_ = case quotedItemId_ of
           Nothing -> pure (MCSimple (ExtMsgContent mc fInv_ (ttl' <$> timed_) (justTrue live)), Nothing)
@@ -718,53 +685,27 @@ processChatCommand' vr = \case
           | isVoice mc && not (groupFeatureAllowed SGFVoice gInfo) = notAllowedError GFVoice
           | not (isVoice mc) && isJust file_ && not (groupFeatureAllowed SGFFiles gInfo) = notAllowedError GFFiles
           | otherwise = do
-              (fInv_, ciFile_, ft_) <- unzipMaybe3 <$> setupSndFileTransfer g (length $ filter memberCurrent ms)
+              (fInv_, ciFile_) <- L.unzip <$> setupSndFileTransfer g (length $ filter memberCurrent ms)
               timed_ <- sndGroupCITimed live gInfo itemTTL
               (msgContainer, quotedItem_) <- prepareGroupMsg user gInfo mc quotedItemId_ fInv_ timed_ live
-              (msg@SndMessage {sharedMsgId}, sentToMembers) <- sendGroupMessage user gInfo ms (XMsgNew msgContainer)
+              (msg, sentToMembers) <- sendGroupMessage user gInfo ms (XMsgNew msgContainer)
               ci <- saveSndChatItem' user (CDGroupSnd gInfo) msg (CISndMsgContent mc) ciFile_ quotedItem_ timed_ live
               withStore' $ \db ->
                 forM_ sentToMembers $ \GroupMember {groupMemberId} ->
                   createGroupSndStatus db (chatItemId' ci) groupMemberId CISSndNew
-              mapM_ (sendGroupFileInline ms sharedMsgId) ft_
               forM_ (timed_ >>= timedDeleteAt') $
                 startProximateTimedItemThread user (ChatRef CTGroup groupId, chatItemId' ci)
               pure $ CRNewChatItem user (AChatItem SCTGroup SMDSnd (GroupChat gInfo) ci)
         notAllowedError f = pure $ chatCmdError (Just user) ("feature not allowed " <> T.unpack (groupFeatureNameText f))
-        setupSndFileTransfer :: Group -> Int -> m (Maybe (FileInvitation, CIFile 'MDSnd, FileTransferMeta))
-        setupSndFileTransfer g@(Group gInfo _) n = forM file_ $ \file -> do
-          (fileSize, fileMode) <- checkSndFile mc file $ fromIntegral n
-          case fileMode of
-            SendFileSMP fileInline -> smpSndFileTransfer file fileSize fileInline
-            SendFileXFTP -> xftpSndFileTransfer user file fileSize n $ CGGroup g
-          where
-            smpSndFileTransfer :: CryptoFile -> Integer -> Maybe InlineFileMode -> m (FileInvitation, CIFile 'MDSnd, FileTransferMeta)
-            smpSndFileTransfer (CryptoFile _ (Just _)) _ _ = throwChatError $ CEFileInternal "locally encrypted files can't be sent via SMP" -- can only happen if XFTP is disabled
-            smpSndFileTransfer (CryptoFile file Nothing) fileSize fileInline = do
-              let fileName = takeFileName file
-                  fileInvitation = FileInvitation {fileName, fileSize, fileDigest = Nothing, fileConnReq = Nothing, fileInline, fileDescr = Nothing}
-                  fileStatus = if fileInline == Just IFMSent then CIFSSndTransfer 0 1 else CIFSSndStored
-              chSize <- asks $ fileChunkSize . config
-              withStore' $ \db -> do
-                ft@FileTransferMeta {fileId} <- createSndGroupFileTransfer db userId gInfo file fileInvitation chSize
-                let fileSource = Just $ CF.plain file
-                    ciFile = CIFile {fileId, fileName, fileSize, fileSource, fileStatus, fileProtocol = FPSMP}
-                pure (fileInvitation, ciFile, ft)
-        sendGroupFileInline :: [GroupMember] -> SharedMsgId -> FileTransferMeta -> m ()
-        sendGroupFileInline ms sharedMsgId ft@FileTransferMeta {fileInline} =
-          when (fileInline == Just IFMSent) . forM_ ms $ \m ->
-            processMember m `catchChatError` (toView . CRChatError (Just user))
-          where
-            processMember m@GroupMember {activeConn = Just conn@Connection {connStatus}} =
-              when (connStatus == ConnReady || connStatus == ConnSndReady) $ do
-                void . withStore' $ \db -> createSndGroupInlineFT db m conn ft
-                sendMemberFileInline m conn ft sharedMsgId
-            processMember _ = pure ()
+        setupSndFileTransfer :: Group -> Int -> m (Maybe (FileInvitation, CIFile 'MDSnd))
+        setupSndFileTransfer g n = forM file_ $ \file -> do
+          fileSize <- checkSndFile file
+          xftpSndFileTransfer user file fileSize n $ CGGroup g
     CTLocal -> pure $ chatCmdError (Just user) "not supported"
     CTContactRequest -> pure $ chatCmdError (Just user) "not supported"
     CTContactConnection -> pure $ chatCmdError (Just user) "not supported"
     where
-      xftpSndFileTransfer :: User -> CryptoFile -> Integer -> Int -> ContactOrGroup -> m (FileInvitation, CIFile 'MDSnd, FileTransferMeta)
+      xftpSndFileTransfer :: User -> CryptoFile -> Integer -> Int -> ContactOrGroup -> m (FileInvitation, CIFile 'MDSnd)
       xftpSndFileTransfer user file@(CryptoFile filePath cfArgs) fileSize n contactOrGroup = do
         let fileName = takeFileName filePath
             fileDescr = FileDescr {fileDescrText = "", fileDescrPartNo = 0, fileDescrComplete = False}
@@ -788,10 +729,7 @@ processChatCommand' vr = \case
                   withStore' $
                     \db -> createSndFTDescrXFTP db user (Just m) conn ft fileDescr
               saveMemberFD _ = pure ()
-        pure (fInv, ciFile, ft)
-      unzipMaybe3 :: Maybe (a, b, c) -> (Maybe a, Maybe b, Maybe c)
-      unzipMaybe3 (Just (a, b, c)) = (Just a, Just b, Just c)
-      unzipMaybe3 _ = (Nothing, Nothing, Nothing)
+        pure (fInv, ciFile)
   APICreateChatItem folderId (ComposedMessage file_ quotedItemId_ mc) -> withUser $ \user -> do
     forM_ quotedItemId_ $ \_ -> throwError $ ChatError $ CECommandError "not supported"
     nf <- withStore $ \db -> getNoteFolder db user folderId
@@ -1009,7 +947,7 @@ processChatCommand' vr = \case
         -- functions below are called in separate transactions to prevent crashes on android
         -- (possibly, race condition on integrity check?)
         withStore' $ \db -> deleteContactConnectionsAndFiles db userId ct
-        withStore' $ \db -> deleteContact db user ct
+        withStore $ \db -> deleteContact db user ct
         pure $ CRContactDeleted user ct
     CTContactConnection -> withChatLock "deleteChat contactConnection" . procCmd $ do
       conn@PendingContactConnection {pccAgentConnId = AgentConnId acId} <- withStore $ \db -> getPendingContactConnection db userId chatId
@@ -1028,6 +966,7 @@ processChatCommand' vr = \case
         when (memberActive membership && isOwner) . void $ sendGroupMessage' user gInfo members XGrpDel
         deleteGroupLinkIfExists user gInfo
         deleteMembersConnections user members
+        updateCIGroupInvitationStatus user gInfo CIGISRejected `catchChatError` \_ -> pure ()
         -- functions below are called in separate transactions to prevent crashes on android
         -- (possibly, race condition on integrity check?)
         withStore' $ \db -> deleteGroupConnectionsAndFiles db user gInfo members
@@ -1049,7 +988,7 @@ processChatCommand' vr = \case
                     Just _ -> pure []
                     Nothing -> do
                       conns <- withStore' $ \db -> getContactConnections db userId ct
-                      withStore' (\db -> setContactDeleted db user ct)
+                      withStore (\db -> setContactDeleted db user ct)
                         `catchChatError` (toView . CRChatError (Just user))
                       pure $ map aConnId conns
     CTLocal -> pure $ chatCmdError (Just user) "not supported"
@@ -1234,9 +1173,8 @@ processChatCommand' vr = \case
       ok user
   SetUserProtoServers serversConfig -> withUser $ \User {userId} ->
     processChatCommand $ APISetUserProtoServers userId serversConfig
-  APITestProtoServer userId srv@(AProtoServerWithAuth p server) -> withUserId userId $ \user ->
-    withServerProtocol p $
-      CRServerTestResult user srv <$> withAgent (\a -> testProtocolServer a (aUserId user) server)
+  APITestProtoServer userId srv@(AProtoServerWithAuth _ server) -> withUserId userId $ \user ->
+    CRServerTestResult user srv <$> withAgent (\a -> testProtocolServer a (aUserId user) server)
   TestProtoServer srv -> withUser $ \User {userId} ->
     processChatCommand $ APITestProtoServer userId srv
   APISetChatItemTTL userId newTTL_ -> withUserId userId $ \user ->
@@ -1686,17 +1624,9 @@ processChatCommand' vr = \case
             createMemberConnection db userId fromMember agentConnId (fromJVersionRange peerChatVRange) subMode
             updateGroupMemberStatus db userId fromMember GSMemAccepted
             updateGroupMemberStatus db userId membership GSMemAccepted
-          updateCIGroupInvitationStatus user
+          updateCIGroupInvitationStatus user g CIGISAccepted `catchChatError` \_ -> pure ()
           pure $ CRUserAcceptedGroupSent user g {membership = membership {memberStatus = GSMemAccepted}} Nothing
         Nothing -> throwChatError $ CEContactNotActive ct
-    where
-      updateCIGroupInvitationStatus user = do
-        AChatItem _ _ cInfo ChatItem {content, meta = CIMeta {itemId}} <- withStore $ \db -> getChatItemByGroupId db vr user groupId
-        case (cInfo, content) of
-          (DirectChat ct, CIRcvGroupInvitation ciGroupInv memRole) -> do
-            let aciContent = ACIContent SMDRcv $ CIRcvGroupInvitation ciGroupInv {status = CIGISAccepted} memRole
-            updateDirectChatItemView user ct itemId aciContent False Nothing
-          _ -> pure () -- prohibited
   APIMemberRole groupId memberId memRole -> withUser $ \user -> do
     Group gInfo@GroupInfo {membership} members <- withStore $ \db -> getGroup db vr user groupId
     if memberId == groupMemberId' membership
@@ -2209,27 +2139,13 @@ processChatCommand' vr = \case
     contactMember Contact {contactId} =
       find $ \GroupMember {memberContactId = cId, memberStatus = s} ->
         cId == Just contactId && s /= GSMemRemoved && s /= GSMemLeft
-    checkSndFile :: MsgContent -> CryptoFile -> Integer -> m (Integer, SendFileMode)
-    checkSndFile mc (CryptoFile f cfArgs) n = do
+    checkSndFile :: CryptoFile -> m Integer
+    checkSndFile (CryptoFile f cfArgs) = do
       fsFilePath <- toFSFilePath f
       unlessM (doesFileExist fsFilePath) . throwChatError $ CEFileNotFound f
-      ChatConfig {fileChunkSize, inlineFiles} <- asks config
-      xftpCfg <- readTVarIO =<< asks userXFTPFileConfig
       fileSize <- liftIO $ CF.getFileContentsSize $ CryptoFile fsFilePath cfArgs
       when (fromInteger fileSize > maxFileSize) $ throwChatError $ CEFileSize f
-      let chunks = -((-fileSize) `div` fileChunkSize)
-          fileInline = inlineFileMode mc inlineFiles chunks n
-          fileMode = case xftpCfg of
-            Just cfg
-              | isJust cfArgs -> SendFileXFTP
-              | fileInline == Just IFMSent || fileSize < minFileSize cfg || n <= 0 -> SendFileSMP fileInline
-              | otherwise -> SendFileXFTP
-            _ -> SendFileSMP fileInline
-      pure (fileSize, fileMode)
-    inlineFileMode mc InlineFilesConfig {offerChunks, sendChunks, totalSendChunks} chunks n
-      | chunks > offerChunks = Nothing
-      | chunks <= sendChunks && chunks * n <= totalSendChunks && isVoice mc = Just IFMSent
-      | otherwise = Just IFMOffer
+      pure fileSize
     updateProfile :: User -> Profile -> m ChatResponse
     updateProfile user p' = updateProfile_ user p' $ withStore $ \db -> updateUserProfile db user p'
     updateProfile_ :: User -> Profile -> m User -> m ChatResponse
@@ -2512,6 +2428,14 @@ processChatCommand' vr = \case
         cReqHashes :: (ConnReqUriHash, ConnReqUriHash)
         cReqHashes = bimap hash hash cReqSchemas
         hash = ConnReqUriHash . C.sha256Hash . strEncode
+    updateCIGroupInvitationStatus user GroupInfo {groupId} newStatus = do
+      AChatItem _ _ cInfo ChatItem {content, meta = CIMeta {itemId}} <- withStore $ \db -> getChatItemByGroupId db vr user groupId
+      case (cInfo, content) of
+        (DirectChat ct, CIRcvGroupInvitation ciGroupInv@CIGroupInvitation {status} memRole)
+          | status == CIGISPending -> do
+              let aciContent = ACIContent SMDRcv $ CIRcvGroupInvitation ciGroupInv {status = newStatus} memRole
+              updateDirectChatItemView user ct itemId aciContent False Nothing
+        _ -> pure () -- prohibited
 
 toggleNtf :: ChatMonad m => User -> GroupMember -> Bool -> m ()
 toggleNtf user m ntfOn =
@@ -3131,7 +3055,7 @@ cleanupManager = do
     cleanupDeletedContacts user = do
       contacts <- withStore' (`getDeletedContacts` user)
       forM_ contacts $ \ct ->
-        withStore' (\db -> deleteContactWithoutGroups db user ct)
+        withStore (\db -> deleteContactWithoutGroups db user ct)
           `catchChatError` (toView . CRChatError (Just user))
     cleanupMessages = do
       ts <- liftIO getCurrentTime
@@ -4911,7 +4835,7 @@ processAgentMessageConn vr user@User {userId} corrId agentConnId agentMessage =
         else do
           contactConns <- withStore' $ \db -> getContactConnections db userId c
           deleteAgentConnectionsAsync user $ map aConnId contactConns
-          withStore' $ \db -> deleteContact db user c
+          withStore $ \db -> deleteContact db user c
       where
         brokerTs = metaBrokerTs msgMeta
 
@@ -6494,8 +6418,6 @@ chatCommandP =
       "/_temp_folder " *> (SetTempFolder <$> filePath),
       ("/_files_folder " <|> "/files_folder ") *> (SetFilesFolder <$> filePath),
       "/remote_hosts_folder " *> (SetRemoteHostsFolder <$> filePath),
-      "/_xftp " *> (APISetXFTPConfig <$> ("on " *> (Just <$> jsonP) <|> ("off" $> Nothing))),
-      "/xftp " *> (APISetXFTPConfig <$> ("on" *> (Just <$> xftpCfgP) <|> ("off" $> Nothing))),
       "/_files_encrypt " *> (APISetEncryptLocalFiles <$> onOffP),
       "/contact_merge " *> (SetContactMergeEnabled <$> onOffP),
       "/_db export " *> (APIExportArchive <$> jsonP),
@@ -6563,6 +6485,7 @@ chatCommandP =
       "/_server test " *> (APITestProtoServer <$> A.decimal <* A.space <*> strP),
       "/smp test " *> (TestProtoServer . AProtoServerWithAuth SPSMP <$> strP),
       "/xftp test " *> (TestProtoServer . AProtoServerWithAuth SPXFTP <$> strP),
+      "/ntf test " *> (TestProtoServer . AProtoServerWithAuth SPNTF <$> strP),
       "/_servers " *> (APISetUserProtoServers <$> A.decimal <* A.space <*> srvCfgP),
       "/smp " *> (SetUserProtoServers . APSC SPSMP . ProtoServersConfig . map toServerCfg <$> protocolServersP),
       "/smp default" $> SetUserProtoServers (APSC SPSMP $ ProtoServersConfig []),
@@ -6867,14 +6790,6 @@ chatCommandP =
       logErrors <- " log=" *> onOffP <|> pure False
       let tcpTimeout = 1000000 * fromMaybe (maybe 5 (const 10) socksProxy) t_
       pure $ fullNetworkConfig socksProxy tcpTimeout logErrors
-    xftpCfgP = XFTPFileConfig <$> (" size=" *> fileSizeP <|> pure 0)
-    fileSizeP =
-      A.choice
-        [ gb <$> A.decimal <* "gb",
-          mb <$> A.decimal <* "mb",
-          kb <$> A.decimal <* "kb",
-          A.decimal
-        ]
     dbKeyP = nonEmptyKey <$?> strP
     nonEmptyKey k@(DBEncryptionKey s) = if BA.null s then Left "empty key" else Right k
     dbEncryptionConfig currentKey newKey = DBEncryptionConfig {currentKey, newKey, keepKey = Just False}

src/Simplex/Chat/Controller.hs

@@ -128,8 +128,6 @@ data ChatConfig = ChatConfig
     xftpDescrPartSize :: Int,
     inlineFiles :: InlineFilesConfig,
     autoAcceptFileSize :: Integer,
-    xftpFileConfig :: Maybe XFTPFileConfig, -- Nothing - XFTP is disabled
-    tempDir :: Maybe FilePath,
     showReactions :: Bool,
     showReceipts :: Bool,
     subscriptionEvents :: Bool,
@@ -204,7 +202,6 @@ data ChatController = ChatController
     timedItemThreads :: TMap (ChatRef, ChatItemId) (TVar (Maybe (Weak ThreadId))),
     showLiveItems :: TVar Bool,
     encryptLocalFiles :: TVar Bool,
-    userXFTPFileConfig :: TVar (Maybe XFTPFileConfig),
     tempDirectory :: TVar (Maybe FilePath),
     logFilePath :: Maybe FilePath,
     contactMergeEnabled :: TVar Bool
@@ -242,7 +239,6 @@ data ChatCommand
   | SetTempFolder FilePath
   | SetFilesFolder FilePath
   | SetRemoteHostsFolder FilePath
-  | APISetXFTPConfig (Maybe XFTPFileConfig)
   | APISetEncryptLocalFiles Bool
   | SetContactMergeEnabled Bool
   | APIExportArchive ArchiveConfig
@@ -473,7 +469,6 @@ allowRemoteCommand = \case
   SetTempFolder _ -> False
   SetFilesFolder _ -> False
   SetRemoteHostsFolder _ -> False
-  APISetXFTPConfig _ -> False
   APISetEncryptLocalFiles _ -> False
   APIExportArchive _ -> False
   APIImportArchive _ -> False
@@ -934,14 +929,6 @@ instance FromJSON ComposedMessage where
   parseJSON invalid =
     JT.prependFailure "bad ComposedMessage, " (JT.typeMismatch "Object" invalid)
 
-data XFTPFileConfig = XFTPFileConfig
-  { minFileSize :: Integer
-  }
-  deriving (Show)
-
-defaultXFTPFileConfig :: XFTPFileConfig
-defaultXFTPFileConfig = XFTPFileConfig {minFileSize = 0}
-
 data NtfMsgInfo = NtfMsgInfo {msgId :: Text, msgTs :: UTCTime}
   deriving (Show)
 
@@ -1001,11 +988,6 @@ data CoreVersionInfo = CoreVersionInfo
   }
   deriving (Show)
 
-data SendFileMode
-  = SendFileSMP (Maybe InlineFileMode)
-  | SendFileXFTP
-  deriving (Show)
-
 data SlowSQLQuery = SlowSQLQuery
   { query :: Text,
     queryStats :: SlowQueryStats
@@ -1409,6 +1391,4 @@ $(JQ.deriveFromJSON defaultJSON ''ArchiveConfig)
 
 $(JQ.deriveFromJSON defaultJSON ''DBEncryptionConfig)
 
-$(JQ.deriveJSON defaultJSON ''XFTPFileConfig)
-
 $(JQ.deriveToJSON defaultJSON ''ComposedMessage)

src/Simplex/Chat/Mobile.hs

@@ -20,6 +20,7 @@ import qualified Data.ByteArray as BA
 import qualified Data.ByteString.Base64.URL as U
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
+import qualified Data.ByteString.Lazy.Char8 as LB
 import Data.Functor (($>))
 import Data.List (find)
 import qualified Data.List.NonEmpty as L
@@ -94,6 +95,8 @@ foreign export ccall "chat_password_hash" cChatPasswordHash :: CString -> CStrin
 
 foreign export ccall "chat_valid_name" cChatValidName :: CString -> IO CString
 
+foreign export ccall "chat_json_length" cChatJsonLength :: CString -> IO CInt
+
 foreign export ccall "chat_encrypt_media" cChatEncryptMedia :: StablePtr ChatController -> CString -> Ptr Word8 -> CInt -> IO CString
 
 foreign export ccall "chat_decrypt_media" cChatDecryptMedia :: CString -> Ptr Word8 -> CInt -> IO CString
@@ -176,6 +179,10 @@ cChatPasswordHash cPwd cSalt = do
 cChatValidName :: CString -> IO CString
 cChatValidName cName = newCString . mkValidName =<< peekCString cName
 
+-- | returns length of JSON encoded string
+cChatJsonLength :: CString -> IO CInt
+cChatJsonLength s = fromIntegral . subtract 2 . LB.length . J.encode . safeDecodeUtf8 <$> B.packCString s
+
 mobileChatOpts :: String -> ChatOpts
 mobileChatOpts dbFilePrefix =
   ChatOpts
@@ -264,9 +271,18 @@ chatSendRemoteCmd :: ChatController -> Maybe RemoteHostId -> B.ByteString -> IO
 chatSendRemoteCmd cc rh s = J.encode . APIResponse Nothing rh <$> runReaderT (execChatCommand rh s) cc
 
 chatRecvMsg :: ChatController -> IO JSONByteString
-chatRecvMsg ChatController {outputQ} = json <$> atomically (readTBQueue outputQ)
+chatRecvMsg ChatController {outputQ} = json <$> readChatResponse
   where
     json (corr, remoteHostId, resp) = J.encode APIResponse {corr, remoteHostId, resp}
+    readChatResponse = do
+      out@(_, _, cr) <- atomically $ readTBQueue outputQ
+      if filterEvent cr then pure out else readChatResponse
+    filterEvent = \case
+      CRGroupSubscribed {} -> False
+      CRGroupEmpty {} -> False
+      CRMemberSubSummary {} -> False
+      CRPendingSubSummary {} -> False
+      _ -> True
 
 chatRecvMsgWait :: ChatController -> Int -> IO JSONByteString
 chatRecvMsgWait cc time = fromMaybe "" <$> timeout time (chatRecvMsg cc)

src/Simplex/Chat/Store/Direct.hs

@@ -229,37 +229,45 @@ deleteContactConnectionsAndFiles db userId Contact {contactId} = do
     (userId, contactId)
   DB.execute db "DELETE FROM files WHERE user_id = ? AND contact_id = ?" (userId, contactId)
 
-deleteContact :: DB.Connection -> User -> Contact -> IO ()
-deleteContact db user@User {userId} Contact {contactId, localDisplayName, activeConn} = do
-  DB.execute db "DELETE FROM chat_items WHERE user_id = ? AND contact_id = ?" (userId, contactId)
-  ctMember :: (Maybe ContactId) <- maybeFirstRow fromOnly $ DB.query db "SELECT contact_id FROM group_members WHERE user_id = ? AND contact_id = ? LIMIT 1" (userId, contactId)
-  if isNothing ctMember
-    then do
-      deleteContactProfile_ db userId contactId
-      DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
-    else do
-      currentTs <- getCurrentTime
-      DB.execute db "UPDATE group_members SET contact_id = NULL, updated_at = ? WHERE user_id = ? AND contact_id = ?" (currentTs, userId, contactId)
-  DB.execute db "DELETE FROM contacts WHERE user_id = ? AND contact_id = ?" (userId, contactId)
-  forM_ activeConn $ \Connection {customUserProfileId} ->
-    forM_ customUserProfileId $ \profileId ->
-      deleteUnusedIncognitoProfileById_ db user profileId
+deleteContact :: DB.Connection -> User -> Contact -> ExceptT StoreError IO ()
+deleteContact db user@User {userId} ct@Contact {contactId, localDisplayName, activeConn} = do
+  assertNotUser db user ct
+  liftIO $ do
+    DB.execute db "DELETE FROM chat_items WHERE user_id = ? AND contact_id = ?" (userId, contactId)
+    ctMember :: (Maybe ContactId) <- maybeFirstRow fromOnly $ DB.query db "SELECT contact_id FROM group_members WHERE user_id = ? AND contact_id = ? LIMIT 1" (userId, contactId)
+    if isNothing ctMember
+      then do
+        deleteContactProfile_ db userId contactId
+        -- user's local display name already checked in assertNotUser
+        DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
+      else do
+        currentTs <- getCurrentTime
+        DB.execute db "UPDATE group_members SET contact_id = NULL, updated_at = ? WHERE user_id = ? AND contact_id = ?" (currentTs, userId, contactId)
+    DB.execute db "DELETE FROM contacts WHERE user_id = ? AND contact_id = ?" (userId, contactId)
+    forM_ activeConn $ \Connection {customUserProfileId} ->
+      forM_ customUserProfileId $ \profileId ->
+        deleteUnusedIncognitoProfileById_ db user profileId
 
 -- should only be used if contact is not member of any groups
-deleteContactWithoutGroups :: DB.Connection -> User -> Contact -> IO ()
-deleteContactWithoutGroups db user@User {userId} Contact {contactId, localDisplayName, activeConn} = do
-  DB.execute db "DELETE FROM chat_items WHERE user_id = ? AND contact_id = ?" (userId, contactId)
-  deleteContactProfile_ db userId contactId
-  DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
-  DB.execute db "DELETE FROM contacts WHERE user_id = ? AND contact_id = ?" (userId, contactId)
-  forM_ activeConn $ \Connection {customUserProfileId} ->
-    forM_ customUserProfileId $ \profileId ->
-      deleteUnusedIncognitoProfileById_ db user profileId
+deleteContactWithoutGroups :: DB.Connection -> User -> Contact -> ExceptT StoreError IO ()
+deleteContactWithoutGroups db user@User {userId} ct@Contact {contactId, localDisplayName, activeConn} = do
+  assertNotUser db user ct
+  liftIO $ do
+    DB.execute db "DELETE FROM chat_items WHERE user_id = ? AND contact_id = ?" (userId, contactId)
+    deleteContactProfile_ db userId contactId
+    -- user's local display name already checked in assertNotUser
+    DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
+    DB.execute db "DELETE FROM contacts WHERE user_id = ? AND contact_id = ?" (userId, contactId)
+    forM_ activeConn $ \Connection {customUserProfileId} ->
+      forM_ customUserProfileId $ \profileId ->
+        deleteUnusedIncognitoProfileById_ db user profileId
 
-setContactDeleted :: DB.Connection -> User -> Contact -> IO ()
-setContactDeleted db User {userId} Contact {contactId} = do
-  currentTs <- getCurrentTime
-  DB.execute db "UPDATE contacts SET deleted = 1, updated_at = ? WHERE user_id = ? AND contact_id = ?" (currentTs, userId, contactId)
+setContactDeleted :: DB.Connection -> User -> Contact -> ExceptT StoreError IO ()
+setContactDeleted db user@User {userId} ct@Contact {contactId} = do
+  assertNotUser db user ct
+  liftIO $ do
+    currentTs <- getCurrentTime
+    DB.execute db "UPDATE contacts SET deleted = 1, updated_at = ? WHERE user_id = ? AND contact_id = ?" (currentTs, userId, contactId)
 
 getDeletedContacts :: DB.Connection -> User -> IO [Contact]
 getDeletedContacts db user@User {userId} = do
@@ -320,7 +328,7 @@ updateContactProfile db user@User {userId} c p'
       ExceptT . withLocalDisplayName db userId newName $ \ldn -> do
         currentTs <- getCurrentTime
         updateContactProfile_' db userId profileId p' currentTs
-        updateContactLDN_ db userId contactId localDisplayName ldn currentTs
+        updateContactLDN_ db user contactId localDisplayName ldn currentTs
         pure $ Right c {localDisplayName = ldn, profile, mergedPreferences}
   where
     Contact {contactId, localDisplayName, profile = LocalProfile {profileId, displayName, localAlias}, userPreferences} = c
@@ -491,8 +499,8 @@ updateMemberContactProfile_' db userId profileId Profile {displayName, fullName,
     |]
     (displayName, fullName, image, updatedAt, userId, profileId)
 
-updateContactLDN_ :: DB.Connection -> UserId -> Int64 -> ContactName -> ContactName -> UTCTime -> IO ()
-updateContactLDN_ db userId contactId displayName newName updatedAt = do
+updateContactLDN_ :: DB.Connection -> User -> Int64 -> ContactName -> ContactName -> UTCTime -> IO ()
+updateContactLDN_ db user@User {userId} contactId displayName newName updatedAt = do
   DB.execute
     db
     "UPDATE contacts SET local_display_name = ?, updated_at = ? WHERE user_id = ? AND contact_id = ?"
@@ -501,7 +509,7 @@ updateContactLDN_ db userId contactId displayName newName updatedAt = do
     db
     "UPDATE group_members SET local_display_name = ?, updated_at = ? WHERE user_id = ? AND contact_id = ?"
     (newName, updatedAt, userId, contactId)
-  DB.execute db "DELETE FROM display_names WHERE local_display_name = ? AND user_id = ?" (displayName, userId)
+  safeDeleteLDN db user displayName
 
 getContactByName :: DB.Connection -> User -> ContactName -> ExceptT StoreError IO Contact
 getContactByName db user localDisplayName = do
@@ -614,7 +622,7 @@ createOrUpdateContactRequest db user@User {userId} userContactLinkId invId (Vers
                 WHERE user_id = ? AND contact_request_id = ?
               |]
               (invId, minV, maxV, ldn, currentTs, userId, cReqId)
-            DB.execute db "DELETE FROM display_names WHERE local_display_name = ? AND user_id = ?" (oldLdn, userId)
+            safeDeleteLDN db user oldLdn
       where
         updateProfile currentTs =
           DB.execute
@@ -684,8 +692,9 @@ deleteContactRequest db User {userId} contactRequestId = do
         SELECT local_display_name FROM contact_requests
         WHERE user_id = ? AND contact_request_id = ?
       )
+      AND local_display_name NOT IN (SELECT local_display_name FROM users WHERE user_id = ?)
     |]
-    (userId, userId, contactRequestId)
+    (userId, userId, contactRequestId, userId)
   DB.execute db "DELETE FROM contact_requests WHERE user_id = ? AND contact_request_id = ?" (userId, contactRequestId)
 
 createAcceptedContact :: DB.Connection -> User -> ConnId -> VersionRange -> ContactName -> ProfileId -> Profile -> Int64 -> Maybe XContactId -> Maybe IncognitoProfile -> SubscriptionMode -> Bool -> IO Contact

src/Simplex/Chat/Store/Files.hs

@@ -14,7 +14,6 @@ module Simplex.Chat.Store.Files
   ( getLiveSndFileTransfers,
     getLiveRcvFileTransfers,
     getPendingSndChunks,
-    createSndDirectFileTransfer,
     createSndDirectFTConnection,
     createSndGroupFileTransfer,
     createSndGroupFileTransferConnection,
@@ -169,23 +168,6 @@ getPendingSndChunks db fileId connId =
       |]
       (fileId, connId)
 
-createSndDirectFileTransfer :: DB.Connection -> UserId -> Contact -> FilePath -> FileInvitation -> Maybe ConnId -> Integer -> SubscriptionMode -> IO FileTransferMeta
-createSndDirectFileTransfer db userId Contact {contactId} filePath FileInvitation {fileName, fileSize, fileInline} acId_ chunkSize subMode = do
-  currentTs <- getCurrentTime
-  DB.execute
-    db
-    "INSERT INTO files (user_id, contact_id, file_name, file_path, file_size, chunk_size, file_inline, ci_file_status, protocol, created_at, updated_at) VALUES (?,?,?,?,?,?,?,?,?,?,?)"
-    ((userId, contactId, fileName, filePath, fileSize, chunkSize) :. (fileInline, CIFSSndStored, FPSMP, currentTs, currentTs))
-  fileId <- insertedRowId db
-  forM_ acId_ $ \acId -> do
-    Connection {connId} <- createSndFileConnection_ db userId fileId acId subMode
-    let fileStatus = FSNew
-    DB.execute
-      db
-      "INSERT INTO snd_files (file_id, file_status, file_inline, connection_id, created_at, updated_at) VALUES (?,?,?,?,?,?)"
-      (fileId, fileStatus, fileInline, connId, currentTs, currentTs)
-  pure FileTransferMeta {fileId, xftpSndFile = Nothing, fileName, filePath, fileSize, fileInline, chunkSize, cancelled = False}
-
 createSndDirectFTConnection :: DB.Connection -> User -> Int64 -> (CommandId, ConnId) -> SubscriptionMode -> IO ()
 createSndDirectFTConnection db user@User {userId} fileId (cmdId, acId) subMode = do
   currentTs <- getCurrentTime

src/Simplex/Chat/Store/Groups.hs

@@ -225,8 +225,9 @@ deleteGroupLink db User {userId} GroupInfo {groupId} = do
           JOIN user_contact_links uc USING (user_contact_link_id)
           WHERE uc.user_id = ? AND uc.group_id = ?
         )
+        AND local_display_name NOT IN (SELECT local_display_name FROM users WHERE user_id = ?)
     |]
-    (userId, userId, groupId)
+    (userId, userId, groupId, userId)
   DB.execute
     db
     [sql|
@@ -586,7 +587,7 @@ deleteGroup :: DB.Connection -> User -> GroupInfo -> IO ()
 deleteGroup db user@User {userId} g@GroupInfo {groupId, localDisplayName} = do
   deleteGroupProfile_ db userId groupId
   DB.execute db "DELETE FROM groups WHERE user_id = ? AND group_id = ?" (userId, groupId)
-  DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
+  safeDeleteLDN db user localDisplayName
   forM_ (incognitoMembershipProfile g) $ deleteUnusedIncognitoProfileById_ db user . localProfileId
 
 deleteGroupProfile_ :: DB.Connection -> UserId -> GroupId -> IO ()
@@ -1044,14 +1045,14 @@ deleteGroupMember db user@User {userId} m@GroupMember {groupMemberId, groupId, m
   when (memberIncognito m) $ deleteUnusedIncognitoProfileById_ db user $ localProfileId memberProfile
 
 cleanupMemberProfileAndName_ :: DB.Connection -> User -> GroupMember -> IO ()
-cleanupMemberProfileAndName_ db User {userId} GroupMember {groupMemberId, memberContactId, memberContactProfileId, localDisplayName} =
+cleanupMemberProfileAndName_ db user@User {userId} GroupMember {groupMemberId, memberContactId, memberContactProfileId, localDisplayName} =
   -- check record has no memberContactId (contact_id) - it means contact has been deleted and doesn't use profile & ldn
   when (isNothing memberContactId) $ do
     -- check other group member records don't use profile & ldn
     sameProfileMember :: (Maybe GroupMemberId) <- maybeFirstRow fromOnly $ DB.query db "SELECT group_member_id FROM group_members WHERE user_id = ? AND contact_profile_id = ? AND group_member_id != ? LIMIT 1" (userId, memberContactProfileId, groupMemberId)
     when (isNothing sameProfileMember) $ do
       DB.execute db "DELETE FROM contact_profiles WHERE user_id = ? AND contact_profile_id = ?" (userId, memberContactProfileId)
-      DB.execute db "DELETE FROM display_names WHERE user_id = ? AND local_display_name = ?" (userId, localDisplayName)
+      safeDeleteLDN db user localDisplayName
 
 deleteGroupMemberConnection :: DB.Connection -> User -> GroupMember -> IO ()
 deleteGroupMemberConnection db User {userId} GroupMember {groupMemberId} =
@@ -1330,7 +1331,7 @@ getViaGroupContact db user@User {userId} GroupMember {groupMemberId} = do
   maybe (pure Nothing) (fmap eitherToMaybe . runExceptT . getContact db user) contactId_
 
 updateGroupProfile :: DB.Connection -> User -> GroupInfo -> GroupProfile -> ExceptT StoreError IO GroupInfo
-updateGroupProfile db User {userId} g@GroupInfo {groupId, localDisplayName, groupProfile = GroupProfile {displayName}} p'@GroupProfile {displayName = newName, fullName, description, image, groupPreferences}
+updateGroupProfile db user@User {userId} g@GroupInfo {groupId, localDisplayName, groupProfile = GroupProfile {displayName}} p'@GroupProfile {displayName = newName, fullName, description, image, groupPreferences}
   | displayName == newName = liftIO $ do
       currentTs <- getCurrentTime
       updateGroupProfile_ currentTs
@@ -1361,7 +1362,7 @@ updateGroupProfile db User {userId} g@GroupInfo {groupId, localDisplayName, grou
         db
         "UPDATE groups SET local_display_name = ?, updated_at = ? WHERE user_id = ? AND group_id = ?"
         (ldn, currentTs, userId, groupId)
-      DB.execute db "DELETE FROM display_names WHERE local_display_name = ? AND user_id = ?" (localDisplayName, userId)
+      safeDeleteLDN db user localDisplayName
 
 getGroupInfo :: DB.Connection -> VersionRange -> User -> Int64 -> ExceptT StoreError IO GroupInfo
 getGroupInfo db vr User {userId, userContactId} groupId =
@@ -1464,7 +1465,7 @@ getMatchingContacts db user@User {userId} Contact {contactId, profile = LocalPro
         FROM contacts ct
         JOIN contact_profiles p ON ct.contact_profile_id = p.contact_profile_id
         WHERE ct.user_id = ? AND ct.contact_id != ?
-          AND ct.contact_status = ? AND ct.deleted = 0
+          AND ct.contact_status = ? AND ct.deleted = 0 AND ct.is_user = 0
           AND p.display_name = ? AND p.full_name = ?
       |]
 
@@ -1502,7 +1503,7 @@ getMatchingMemberContacts db user@User {userId} GroupMember {memberProfile = Loc
         FROM contacts ct
         JOIN contact_profiles p ON ct.contact_profile_id = p.contact_profile_id
         WHERE ct.user_id = ?
-          AND ct.contact_status = ? AND ct.deleted = 0
+          AND ct.contact_status = ? AND ct.deleted = 0 AND ct.is_user = 0
           AND p.display_name = ? AND p.full_name = ?
       |]
 
@@ -1615,6 +1616,8 @@ mergeContactRecords db user@User {userId} to@Contact {localDisplayName = keepLDN
   let (toCt, fromCt) = toFromContacts to from
       Contact {contactId = toContactId, localDisplayName = toLDN} = toCt
       Contact {contactId = fromContactId, localDisplayName = fromLDN} = fromCt
+  assertNotUser db user toCt
+  assertNotUser db user fromCt
   liftIO $ do
     currentTs <- getCurrentTime
     -- next query fixes incorrect unused contacts deletion
@@ -2018,7 +2021,7 @@ createMemberContactConn_
     pure Connection {connId, agentConnId = AgentConnId acId, peerChatVRange, connType = ConnContact, contactConnInitiated = False, entityId = Just contactId, viaContact = Nothing, viaUserContactLink = Nothing, viaGroupLink = False, groupLinkId = Nothing, customUserProfileId, connLevel, connStatus = ConnJoined, localAlias = "", createdAt = currentTs, connectionCode = Nothing, authErrCounter = 0}
 
 updateMemberProfile :: DB.Connection -> User -> GroupMember -> Profile -> ExceptT StoreError IO GroupMember
-updateMemberProfile db User {userId} m p'
+updateMemberProfile db user@User {userId} m p'
   | displayName == newName = do
       liftIO $ updateMemberContactProfileReset_ db userId profileId p'
       pure m {memberProfile = profile}
@@ -2030,7 +2033,7 @@ updateMemberProfile db User {userId} m p'
           db
           "UPDATE group_members SET local_display_name = ?, updated_at = ? WHERE user_id = ? AND group_member_id = ?"
           (ldn, currentTs, userId, groupMemberId)
-        DB.execute db "DELETE FROM display_names WHERE local_display_name = ? AND user_id = ?" (localDisplayName, userId)
+        safeDeleteLDN db user localDisplayName
         pure $ Right m {localDisplayName = ldn, memberProfile = profile}
   where
     GroupMember {groupMemberId, localDisplayName, memberProfile = LocalProfile {profileId, displayName, localAlias}} = m
@@ -2038,7 +2041,7 @@ updateMemberProfile db User {userId} m p'
     profile = toLocalProfile profileId p' localAlias
 
 updateContactMemberProfile :: DB.Connection -> User -> GroupMember -> Contact -> Profile -> ExceptT StoreError IO (GroupMember, Contact)
-updateContactMemberProfile db User {userId} m ct@Contact {contactId} p'
+updateContactMemberProfile db user@User {userId} m ct@Contact {contactId} p'
   | displayName == newName = do
       liftIO $ updateMemberContactProfile_ db userId profileId p'
       pure (m {memberProfile = profile}, ct {profile} :: Contact)
@@ -2046,7 +2049,7 @@ updateContactMemberProfile db User {userId} m ct@Contact {contactId} p'
       ExceptT . withLocalDisplayName db userId newName $ \ldn -> do
         currentTs <- getCurrentTime
         updateMemberContactProfile_' db userId profileId p' currentTs
-        updateContactLDN_ db userId contactId localDisplayName ldn currentTs
+        updateContactLDN_ db user contactId localDisplayName ldn currentTs
         pure $ Right (m {localDisplayName = ldn, memberProfile = profile}, ct {localDisplayName = ldn, profile} :: Contact)
   where
     GroupMember {localDisplayName, memberProfile = LocalProfile {profileId, displayName, localAlias}} = m

src/Simplex/Chat/Store/Profiles.hs

@@ -267,7 +267,7 @@ updateUserProfile db user p'
           "INSERT INTO display_names (local_display_name, ldn_base, user_id, created_at, updated_at) VALUES (?,?,?,?,?)"
           (newName, newName, userId, currentTs, currentTs)
         updateContactProfile_' db userId profileId p' currentTs
-        updateContactLDN_ db userId userContactId localDisplayName newName currentTs
+        updateContactLDN_ db user userContactId localDisplayName newName currentTs
         pure user {localDisplayName = newName, profile, fullPreferences, userMemberProfileUpdatedAt = userMemberProfileUpdatedAt'}
   where
     updateUserMemberProfileUpdatedAt_ currentTs
@@ -388,6 +388,7 @@ deleteUserAddress db user@User {userId} = do
           JOIN user_contact_links uc USING (user_contact_link_id)
           WHERE uc.user_id = :user_id AND uc.local_display_name = '' AND uc.group_id IS NULL
         )
+        AND local_display_name NOT IN (SELECT local_display_name FROM users WHERE user_id = :user_id)
     |]
     [":user_id" := userId]
   DB.executeNamed

src/Simplex/Chat/Store/Shared.hs

@@ -110,6 +110,7 @@ data StoreError
   | SERemoteHostDuplicateCA
   | SERemoteCtrlNotFound {remoteCtrlId :: RemoteCtrlId}
   | SERemoteCtrlDuplicateCA
+  | SEProhibitedDeleteUser {userId :: UserId, contactId :: ContactId}
   deriving (Show, Exception)
 
 $(J.deriveJSON (sumTypeJSON $ dropPrefix "SE") ''StoreError)
@@ -401,3 +402,33 @@ createWithRandomBytes' size gVar create = tryCreate 3
 
 encodedRandomBytes :: TVar ChaChaDRG -> Int -> IO ByteString
 encodedRandomBytes gVar n = atomically $ B64.encode <$> C.randomBytes n gVar
+
+assertNotUser :: DB.Connection -> User -> Contact -> ExceptT StoreError IO ()
+assertNotUser db User {userId} Contact {contactId, localDisplayName} = do
+  r :: (Maybe Int64) <-
+    -- This query checks that the foreign keys in the users table
+    -- are not referencing the contact about to be deleted.
+    -- With the current schema it would cause cascade delete of user,
+    -- with mofified schema (in v5.6.0-beta.0) it would cause foreign key violation error.
+    liftIO . maybeFirstRow fromOnly $
+      DB.query
+        db
+        [sql|
+          SELECT 1 FROM users
+          WHERE (user_id = ? AND local_display_name = ?)
+             OR contact_id = ?
+          LIMIT 1
+        |]
+        (userId, localDisplayName, contactId)
+  when (isJust r) $ throwError $ SEProhibitedDeleteUser userId contactId
+
+safeDeleteLDN :: DB.Connection -> User -> ContactName -> IO ()
+safeDeleteLDN db User {userId} localDisplayName = do
+  DB.execute
+    db
+    [sql|
+      DELETE FROM display_names
+      WHERE user_id = ? AND local_display_name = ?
+        AND local_display_name NOT IN (SELECT local_display_name FROM users WHERE user_id = ?)
+    |]
+    (userId, localDisplayName, userId)

tests/ChatClient.hs

@@ -15,6 +15,7 @@ import Control.Concurrent.STM
 import Control.Exception (bracket, bracket_)
 import Control.Monad
 import Control.Monad.Except
+import Control.Monad.Reader
 import Data.ByteArray (ScrubbedBytes)
 import Data.Functor (($>))
 import Data.List (dropWhileEnd, find)
@@ -22,7 +23,7 @@ import Data.Maybe (isNothing)
 import qualified Data.Text as T
 import Network.Socket
 import Simplex.Chat
-import Simplex.Chat.Controller (ChatConfig (..), ChatController (..), ChatDatabase (..), ChatLogLevel (..))
+import Simplex.Chat.Controller (ChatCommand (..), ChatConfig (..), ChatController (..), ChatDatabase (..), ChatLogLevel (..))
 import Simplex.Chat.Core
 import Simplex.Chat.Options
 import Simplex.Chat.Store
@@ -129,8 +130,7 @@ testCfg =
     { agentConfig = testAgentCfg,
       showReceipts = False,
       testView = True,
-      tbqSize = 16,
-      xftpFileConfig = Nothing
+      tbqSize = 16
     }
 
 testAgentCfgVPrev :: AgentConfig
@@ -209,6 +209,7 @@ startTestChat_ db cfg opts user = do
   t <- withVirtualTerminal termSettings pure
   ct <- newChatTerminal t opts
   cc <- newChatController db (Just user) cfg opts False
+  void $ execChatCommand' (SetTempFolder "tests/tmp/tmp") `runReaderT` cc
   chatAsync <- async . runSimplexChat opts user cc $ \_u cc' -> runChatTerminal ct cc' opts
   atomically . unless (maintenance opts) $ readTVar (agentAsync cc) >>= \a -> when (isNothing a) retry
   termQ <- newTQueueIO

tests/ChatTests/Direct.hs

@@ -1067,7 +1067,7 @@ testChatWorking alice bob = do
   alice <# "bob> hello too"
 
 testMaintenanceModeWithFiles :: HasCallStack => FilePath -> IO ()
-testMaintenanceModeWithFiles tmp = do
+testMaintenanceModeWithFiles tmp = withXFTPServer $ do
   withNewTestChat tmp "bob" bobProfile $ \bob -> do
     withNewTestChatOpts tmp testOpts {maintenance = True} "alice" aliceProfile $ \alice -> do
       alice ##> "/_start"
@@ -1075,12 +1075,26 @@ testMaintenanceModeWithFiles tmp = do
       alice ##> "/_files_folder ./tests/tmp/alice_files"
       alice <## "ok"
       connectUsers alice bob
-      startFileTransferWithDest' bob alice "test.jpg" "136.5 KiB / 139737 bytes" Nothing
-      bob <## "completed sending file 1 (test.jpg) to alice"
+
+      bob #> "/f @alice ./tests/fixtures/test.jpg"
+      bob <## "use /fc 1 to cancel sending"
+      alice <# "bob> sends file test.jpg (136.5 KiB / 139737 bytes)"
+      alice <## "use /fr 1 [<dir>/ | <path>] to receive it"
+      bob <## "completed uploading file 1 (test.jpg) for alice"
+
+      alice ##> "/fr 1"
+      alice
+        <### [ "saving file 1 from bob to test.jpg",
+               "started receiving file 1 (test.jpg) from bob"
+             ]
       alice <## "completed receiving file 1 (test.jpg) from bob"
+
       src <- B.readFile "./tests/fixtures/test.jpg"
-      B.readFile "./tests/tmp/alice_files/test.jpg" `shouldReturn` src
+      dest <- B.readFile "./tests/tmp/alice_files/test.jpg"
+      dest `shouldBe` src
+
       threadDelay 500000
+
       alice ##> "/_stop"
       alice <## "chat stopped"
       alice ##> "/_db export {\"archivePath\": \"./tests/tmp/alice-chat.zip\"}"