Add warning related to SOCKS proxy support

SOCKS proxy support requires the requests[socks] library which is
currently unavailable on standard Kodi repositories.

plugin.video.vrt.nu/resources/language/resource.language.en_gb/strings.po

@@ -63,6 +63,14 @@ msgctxt "#32054"
 msgid "Woops something went wrong, check the log for more details"
 msgstr "Woops something went wrong, check the log for more details"
 
+msgctxt "#32061"
+msgid "SOCKS proxies are currently unsupported"
+msgstr "SOCKS proxies are currently unsupported"
+
+msgctxt "#32062"
+msgid "Using a SOCKS proxy requires the requests[socks] library installed."
+msgstr "Using a SOCKS proxy requires the requests[socks] library installed."
+
 msgctxt "#32080"
 msgid "A-Z"
 msgstr "A-Z"

plugin.video.vrt.nu/resources/language/resource.language.nl_nl/strings.po

@@ -64,6 +64,14 @@ msgctxt "#32054"
 msgid "Woops something went wrong, check the log for more details"
 msgstr "Oeps, er ging iets mis, check de log voor meer informatie"
 
+msgctxt "#32061"
+msgid "SOCKS proxies are currently unsupported"
+msgstr "SOCKS proxies zijn momenteel niet ondersteund"
+
+msgctxt "#32062"
+msgid "Using a SOCKS proxy requires the requests[socks] library installed."
+msgstr "Het gebruik van SOCKS proxies vereist dat de requests[socks] library geïnstalleerd is."
+
 msgctxt "#32080"
 msgid "A-Z"
 msgstr "A-Z"

plugin.video.vrt.nu/resources/lib/kodiwrappers/kodiwrapper.py

@@ -103,15 +103,20 @@ def get_proxies(self):
 
         httpproxytype = self.get_global_setting('network.httpproxytype')
 
-        if httpproxytype == '0':
+        if httpproxytype != 0:
+            title = self._kodi_wrapper.get_localized_string(32061)
+            message = self._kodi_wrapper.get_localized_string(32062)
+            self._kodi_wrapper.show_ok_dialog(title, message)
+
+        if httpproxytype == 0:
             httpproxyscheme = 'http'
-        elif httpproxytype == '1':
+        elif httpproxytype == 1:
             httpproxyscheme = 'socks4'
-        elif httpproxytype == '2':
+        elif httpproxytype == 2:
             httpproxyscheme = 'socks4a'
-        elif httpproxytype == '3':
+        elif httpproxytype == 3:
             httpproxyscheme = 'socks5'
-        elif httpproxytype == '4':
+        elif httpproxytype == 4:
             httpproxyscheme = 'socks5h'
         else:
             httpproxyscheme = 'http'