[chronojump] Networks: check active Internet devices (show on rfid person popup)

[Xavier de Blas <xaviblas src gnome org>]

commit b2d27c887e5eab2935b3df4c56fe69bfcbc5cf97
Author: Xavier de Blas <xaviblas gmail com>
Date:   Wed Jan 29 17:47:59 2020 +0100

    Networks: check active Internet devices (show on rfid person popup)

 glade/dialog_person_popup.glade | 37 ++++++++++++++++++----------
 po/POTFILES.in                  |  1 +
 src/gui/dialogPersonPopup.cs    |  5 +++-
 src/gui/networks.cs             | 12 ++++++---
 src/networks.cs                 | 54 +++++++++++++++++++++++++++++++++++++++++
 5 files changed, 91 insertions(+), 18 deletions(-)
---
diff --git a/glade/dialog_person_popup.glade b/glade/dialog_person_popup.glade
index e48e280a..c62f8b60 100644
--- a/glade/dialog_person_popup.glade
+++ b/glade/dialog_person_popup.glade
@@ -49,6 +49,17 @@
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="spacing">20</property>
+                        <child>
+                          <widget class="GtkLabel" id="label_rfid">
+                            <property name="can_focus">False</property>
+                            <property name="label" translatable="yes">label</property>
+                          </widget>
+                          <packing>
+                            <property name="expand">False</property>
+                            <property name="fill">False</property>
+                            <property name="position">0</property>
+                          </packing>
+                        </child>
                         <child>
                           <widget class="GtkHBox" id="hbox3">
                             <property name="visible">True</property>
@@ -66,6 +77,17 @@
                                       <widget class="GtkVBox" id="vbox7">
                                         <property name="visible">True</property>
                                         <property name="can_focus">False</property>
+                                        <child>
+                                          <widget class="GtkLabel" id="label_network_devices">
+                                            <property name="visible">True</property>
+                                            <property name="can_focus">False</property>
+                                          </widget>
+                                          <packing>
+                                            <property name="expand">False</property>
+                                            <property name="fill">False</property>
+                                            <property name="position">0</property>
+                                          </packing>
+                                        </child>
                                         <child>
                                           <widget class="GtkHBox" id="hbox6">
                                             <property name="visible">True</property>
@@ -98,7 +120,7 @@
                                           <packing>
                                             <property name="expand">True</property>
                                             <property name="fill">True</property>
-                                            <property name="position">0</property>
+                                            <property name="position">1</property>
                                           </packing>
                                         </child>
                                         <child>
@@ -109,7 +131,7 @@
                                           <packing>
                                             <property name="expand">False</property>
                                             <property name="fill">False</property>
-                                            <property name="position">1</property>
+                                            <property name="position">2</property>
                                           </packing>
                                         </child>
                                       </widget>
@@ -272,17 +294,6 @@
                             <property name="position">0</property>
                           </packing>
                         </child>
-                        <child>
-                          <widget class="GtkLabel" id="label_rfid">
-                            <property name="can_focus">False</property>
-                            <property name="label" translatable="yes">label</property>
-                          </widget>
-                          <packing>
-                            <property name="expand">False</property>
-                            <property name="fill">False</property>
-                            <property name="position">0</property>
-                          </packing>
-                        </child>
                       </widget>
                       <packing>
                         <property name="expand">True</property>
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 3ab12bc8..e9c5e7b6 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -117,6 +117,7 @@ src/json/compujump.cs
 src/json/json.cs
 src/jumpsProfile.cs
 src/jumpType.cs
+src/networks.cs
 src/Mini/chronojump_mini.cs
 src/old/server.cs
 src/pulseType.cs
diff --git a/src/gui/dialogPersonPopup.cs b/src/gui/dialogPersonPopup.cs
index 95c96cc6..affc26d7 100644
--- a/src/gui/dialogPersonPopup.cs
+++ b/src/gui/dialogPersonPopup.cs
@@ -37,6 +37,7 @@ public class DialogPersonPopup
        [Widget] Gtk.Label label_rfid;
        [Widget] Gtk.VBox vbox_tasks_parametrized;
 
+       [Widget] Gtk.Label label_network_devices;
        [Widget] Gtk.Label label_server_connected;
        [Widget] Gtk.Image image_server_connected_yes;
        [Widget] Gtk.Image image_server_connected_no;
@@ -57,7 +58,8 @@ public class DialogPersonPopup
        private bool compujumpDjango;
 
        public DialogPersonPopup (int personID, string name, string rfid,
-                       List<Task> tasks, List<StationCount> stationsCount, bool serverConnected, bool 
Autologout,
+                       List<Task> tasks, List<StationCount> stationsCount,
+                       string networkDevices, bool serverConnected, bool Autologout,
                        bool compujumpDjango, bool compujumpHideTaskDone)
        {
                Glade.XML gladeXML;
@@ -89,6 +91,7 @@ public class DialogPersonPopup
                pixbuf = new Pixbuf (null, Util.GetImagePath(false) + "gtk-cancel.png");
                image_server_connected_no.Pixbuf = pixbuf;
 
+               label_network_devices.Text = networkDevices;
                if(serverConnected)
                {
                        label_server_connected.Text = "Server is connected";
diff --git a/src/gui/networks.cs b/src/gui/networks.cs
index 98c628f3..5e5d5f5d 100644
--- a/src/gui/networks.cs
+++ b/src/gui/networks.cs
@@ -866,11 +866,15 @@ public partial class ChronoJumpWindow
                //3) get other stationsCount
                List<StationCount> stationsCount = 
json.GetOtherStationsWithPendingTasks(currentPerson.UniqueID, configChronojump.CompujumpStationID);
 
-               //4) show dialog
-               showDialogPersonPopup(tasks, stationsCount, json.Connected);
+               //4) check if there are active Internet devices
+               NetworksCheckDevices ncd = new NetworksCheckDevices();
+
+               //5) show dialog
+               showDialogPersonPopup(tasks, stationsCount, ncd.ToString(), json.Connected);
        }
 
-       private void showDialogPersonPopup(List<Task> tasks, List<StationCount> stationsCount, bool 
serverConnected)
+
+       private void showDialogPersonPopup(List<Task> tasks, List<StationCount> stationsCount, string 
networkDevices, bool serverConnected)
        {
                if(dialogPersonPopup != null)
                        dialogPersonPopup.DestroyDialog();
@@ -880,7 +884,7 @@ public partial class ChronoJumpWindow
 
                dialogPersonPopup = new DialogPersonPopup(
                                currentPerson.UniqueID, currentPerson.Name, capturedRFID, tasks, 
stationsCount,
-                               serverConnected, compujumpAutologout.Active,
+                               networkDevices, serverConnected, compujumpAutologout.Active,
                                configChronojump.CompujumpDjango, configChronojump.CompujumpHideTaskDone);
 
                dialogPersonPopup.Fake_button_start_task.Clicked -= new EventHandler(compujumpTaskStart);
diff --git a/src/networks.cs b/src/networks.cs
index 1e0c0f8c..60a04a8e 100644
--- a/src/networks.cs
+++ b/src/networks.cs
@@ -21,6 +21,7 @@
 using System;
 using System.Collections.Generic; //List<T>
 using System.IO; //StringReader
+using Mono.Unix;
        
 public class Networks
 {
@@ -152,3 +153,56 @@ public class NetworksSendMail
        // another option will be use C-sharp methods, see:
        // 
https://stackoverflow.com/questions/2825950/sending-email-with-attachments-from-c-attachments-arrive-as-part-1-2-in-thunde
 }
+
+/*
+ * on Networks to check if eth0 or wifi devices (interfaces) are on
+ * read to see if they are "up":
+ * /sys/class/net/eth0/operstate
+ * /sys/class/net/wlan.../operstate
+*/
+public class NetworksCheckDevices
+{
+       private List<string> devicesUp;
+       private string path = "/sys/class/net/";
+
+       public NetworksCheckDevices ()
+       {
+               devicesUp = new List<string>();
+
+               DirectoryInfo pathDirInfo = new DirectoryInfo(path);
+               DirectoryInfo [] subdirs = pathDirInfo.GetDirectories();
+               foreach (DirectoryInfo dir in subdirs)
+                       if( ( dir.Name.StartsWith("eth") || dir.Name.StartsWith("wlan") ) && 
checkDevice(dir.Name))
+                               devicesUp.Add(dir.Name);
+       }
+
+       private bool checkDevice(string device)
+       {
+               string filename = path + device + "/operstate";
+               if(File.Exists(filename))
+               {
+                       List<string> l = Util.ReadFileAsStringList(filename);
+                       foreach(string str in l)
+                               if(str.Contains("up"))
+                                       return true;
+               }
+
+               return false;
+       }
+
+       public override string ToString()
+       {
+               if(devicesUp.Count == 0)
+                       return Catalog.GetString("No active Internet devices.");
+               else {
+                       string str = Catalog.GetString("Active Internet devices:");
+                       string sep = " ";
+                       foreach(string device in devicesUp)
+                       {
+                               str += sep + device;
+                               sep = ", ";
+                       }
+                       return str;
+               }
+       }
+}