Show the currently used network proxies in Preferences->Miscellaneous

src/calibre/gui2/preferences/misc.py

@@ -10,6 +10,7 @@ from calibre.gui2.preferences import ConfigWidgetBase, test_widget, Setting
 from calibre.gui2.preferences.misc_ui import Ui_Form
 from calibre.gui2 import error_dialog, config, open_local_file, info_dialog
 from calibre.constants import isosx
+from calibre import get_proxies
 
 class WorkersSetting(Setting):
 
@@ -33,6 +34,13 @@ class ConfigWidget(ConfigWidgetBase, Ui_Form):
         self.user_defined_device_button.clicked.connect(self.user_defined_device)
         self.button_osx_symlinks.clicked.connect(self.create_symlinks)
         self.button_osx_symlinks.setVisible(isosx)
+        proxies = get_proxies(debug=False)
+        txt = _('No proxies used')
+        if proxies:
+            lines = ['<br><code>%s: %s</code>'%(t, p) for t, p in
+                    proxies.iteritems()]
+            txt = _('<b>Using proxies:</b>') + ''.join(lines)
+        self.proxies.setText(txt)
 
     def debug_device_detection(self, *args):
         from calibre.gui2.preferences.device_debug import DebugDevice

src/calibre/gui2/preferences/misc.ui

@@ -118,7 +118,7 @@
      </property>
     </widget>
    </item>
-   <item row="20" column="0">
+   <item row="21" column="0">
     <spacer name="verticalSpacer_9">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -131,6 +131,13 @@
      </property>
     </spacer>
    </item>
+   <item row="10" column="0" colspan="2">
+    <widget class="QLabel" name="proxies">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>