Show modal dialog to select default encryption if unknown

4 files changed, 190 insertions, 1 deletions

diff --git a/libdino/src/entity/conversation.vala b/libdino/src/entity/conversation.vala
index 9376dca9..57f0037d 100644
--- a/libdino/src/entity/conversation.vala
+++ b/libdino/src/entity/conversation.vala
@@ -33,7 +33,7 @@ public class Conversation : Object {
             }
         }
     }
-    public Encryption encryption { get; set; default = Encryption.NONE; }
+    public Encryption encryption { get; set; default = Encryption.UNKNOWN; }
     public Message? read_up_to { get; set; }
     public int read_up_to_item { get; set; default=-1; }
 
diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index 2326253c..765188ec 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -64,6 +64,7 @@ set(RESOURCE_LIST
     conversation_list_titlebar_csd.ui
     conversation_row.ui
     conversation_view.ui
+    default_encryption_dialog.ui
     file_default_widget.ui
     file_send_overlay.ui
     emojichooser.ui
diff --git a/main/data/default_encryption_dialog.ui b/main/data/default_encryption_dialog.ui
new file mode 100644
index 00000000..81e794ae
--- /dev/null
+++ b/main/data/default_encryption_dialog.ui
@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.22.2 -->
+<interface>
+  <requires lib="gtk+" version="3.6"/>
+  <object class="GtkDialog" id="dialog">
+    <property name="can_focus">False</property>
+    <property name="modal">True</property>
+    <property name="default_width">320</property>
+    <property name="default_height">260</property>
+    <property name="type_hint">dialog</property>
+    <child type="titlebar">
+      <placeholder/>
+    </child>
+    <child internal-child="vbox">
+      <object class="GtkBox">
+        <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
+        <child internal-child="action_area">
+          <object class="GtkButtonBox">
+            <property name="can_focus">False</property>
+            <property name="layout_style">end</property>
+            <child>
+              <object class="GtkButton" id="accept_button">
+                <property name="label" translatable="yes">OK</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkBox">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="orientation">vertical</property>
+            <child>
+              <object class="GtkLabel" id="default_encryption_warning_label">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="xpad">10</property>
+                <property name="ypad">10</property>
+                <property name="label" translatable="yes">No default end-to-end encryption method has been previously selected for this conversation. XMPP defines some XEP for end-to-end encryption that Dino supports.
+
+It is strongly recommended that one of the following end-to-end encryption methods below is selected before sending a message.
+
+TAKE INTO ACCOUNT UNENCRYPTED CONVERSATIONS COULD BE READ BY THIRD PARTIES.
+
+These settings can be later changed from the Settings menu.</property>
+                <property name="wrap">True</property>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkRadioButton" id="omemo">
+                <property name="label" translatable="yes">OMEMO (XEP-0384)</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">False</property>
+                <property name="active">True</property>
+                <property name="draw_indicator">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkRadioButton" id="openpgp">
+                <property name="label" translatable="yes">OpenPGP (XEP-0027)</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">False</property>
+                <property name="active">True</property>
+                <property name="draw_indicator">True</property>
+                <property name="group">omemo</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">2</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkRadioButton" id="none">
+                <property name="label" translatable="yes">Unencrypted (not recommended)</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">False</property>
+                <property name="active">True</property>
+                <property name="draw_indicator">True</property>
+                <property name="group">omemo</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">3</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">2</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/main/src/ui/conversation_view_controller.vala b/main/src/ui/conversation_view_controller.vala
index bd52c50c..7cea3212 100644
--- a/main/src/ui/conversation_view_controller.vala
+++ b/main/src/ui/conversation_view_controller.vala
@@ -110,6 +110,67 @@ public class ConversationViewController : Object {
         ((Gtk.Window)view.get_toplevel()).add_accel_group(accel_group);
     }
 
+    private void update_conversation_encryption(Conversation? conversation) {
+        if (conversation == null) {
+            return;
+        }
+
+        bool visible = false;
+
+        // FIXME duplicate logic from encryption_button.vala
+        switch (conversation.type_) {
+            case Conversation.Type.CHAT:
+                visible = true;
+                break;
+            case Conversation.Type.GROUPCHAT_PM:
+                visible = false;
+                break;
+            case Conversation.Type.GROUPCHAT:
+                visible = stream_interactor.get_module(MucManager.IDENTITY).is_private_room(conversation.account, conversation.counterpart);
+                break;
+        }
+
+        if (visible && conversation.encryption == UNKNOWN) {
+            Dino.Entities.Settings settings = Dino.Application.get_default().settings;
+
+            if (settings.default_encryption == UNKNOWN) {
+                var selection_dialog_builder = new Builder.from_resource("/im/dino/Dino/default_encryption_dialog.ui");
+                var selection_dialog = selection_dialog_builder.get_object("dialog") as Dialog;
+                var omemo_radio = selection_dialog_builder.get_object("omemo") as RadioButton;
+                var openpgp_radio = selection_dialog_builder.get_object("openpgp") as RadioButton;
+                var none_radio = selection_dialog_builder.get_object("none") as RadioButton;
+                var accept_button = selection_dialog_builder.get_object("accept_button") as Button;
+                Encryption selected_default = UNKNOWN;
+
+                accept_button.clicked.connect(() => {
+                    if (omemo_radio.active) {selected_default = OMEMO;}
+                    else if (openpgp_radio.active) {selected_default = PGP;}
+                    else if (none_radio.active) {selected_default = NONE;}
+
+                    selection_dialog.response(selected_default);
+                    selection_dialog.close();
+                });
+
+                selection_dialog.run();
+                conversation.encryption = selected_default;
+
+                if (selected_default != NONE) {
+                    settings.default_encryption = selected_default;
+                }
+                else {
+                    // Set conversation as unencrypted, but keep
+                    // default encryption setting as undecided.
+                }
+            }
+            else {
+                conversation.encryption = settings.default_encryption;
+            }
+        }
+        else if (!visible) {
+            conversation.encryption = Encryption.NONE;
+        }
+    }
+
     public void select_conversation(Conversation? conversation, bool default_initialize_conversation) {
         if (this.conversation != null) {
             conversation.notify["encryption"].disconnect(update_file_upload_status);
@@ -120,6 +181,8 @@ public class ConversationViewController : Object {
 
         this.conversation = conversation;
 
+        update_conversation_encryption(conversation);
+
         conversation.notify["encryption"].connect(update_file_upload_status);
 
         chat_input_controller.set_conversation(conversation);