Improve error messages on failures

I started injecting failures to Kodi and this makes it handle them better.

Author: dagwieers

resources/language/resource.language.en_gb/strings.po

@@ -967,7 +967,7 @@ msgid "No connection"
 msgstr ""
 
 msgctxt "#30969"
-msgid "There is a problem connecting to the Internet. This could be related to Kodi, your network, your ISP or VRT NU. Check out the Kodi log for more details."
+msgid "There is a problem connecting to the Internet. This could be related to Kodi, your network, your ISP or VRT NU. Check out the Kodi log for more details.\n[COLOR=yellow]{reason}[/COLOR]"
 msgstr ""
 
 msgctxt "#30970"

resources/language/resource.language.nl_nl/strings.po

@@ -967,8 +967,8 @@ msgid "No connection"
 msgstr "Geen verbinding"
 
 msgctxt "#30969"
-msgid "There is a problem connecting to the Internet. This could be related to Kodi, your network, your ISP or VRT NU. Check out the Kodi log for more details."
-msgstr "Er is een probleem met het verbinden met internet. Dit kan liggen aan Kodi, aan jouw netwerk, aan jouw ISP of aan VRT NU. Bekijk de Kodi-log voor meer details."
+msgid "There is a problem connecting to the Internet. This could be related to Kodi, your network, your ISP or VRT NU. Check out the Kodi log for more details.\n[COLOR=yellow]{reason}[/COLOR]"
+msgstr "Er is een probleem met het verbinden met internet. Dit kan liggen aan Kodi, aan jouw netwerk, aan jouw ISP of aan VRT NU. Bekijk de Kodi-log voor meer details.\n[COLOR=yellow]{reason}[/COLOR]"
 
 msgctxt "#30970"
 msgid "VRT NU authentication failed"

resources/lib/apihelper.py

@@ -596,6 +596,10 @@ def get_episodes(self, program=None, season=None, episodes=None, category=None,
         else:
             search_json = get_url_json(url=search_url, fail={})
 
+        # Fail more gracefully on network errors
+        if not search_json:
+            return []
+
         # Check for multiple seasons
         seasons = []
         if 'facets[seasonTitle]' not in unquote(search_url):

resources/lib/kodiutils.py

@@ -1120,22 +1120,24 @@ def open_url(url, data=None, headers=None, method=None, cookiejar=None, follow_r
         log_error('HTTP Error {code}: {reason}', code=code, reason=reason)
         return None
     except URLError as exc:
-        ok_dialog(heading=localize(30968), message=localize(30969))
-        log_error('URLError: {error}\nurl: {url}', error=exc.reason, url=url)
+        ok_dialog(heading=localize(30968), message=localize(30969, reason=exc.reason))
+        log_error('URLError: {reason}\nurl: {url}', reason=exc.reason, url=url)
         return None
     except SSLError as exc:
         # TODO: Include the error message in the notification window
-        ok_dialog(heading=localize(30968), message=localize(30969))
         if hasattr(exc, 'reason'):  # Python 2.7.9+, but still failed on Python 2.7.16
-            log_error('SSLError: {error} ({library})\nurl: {url}', error=exc.reason, library=exc.library, url=url)
+            ok_dialog(heading=localize(30968), message=localize(30969, reason=exc.reason))
+            log_error('SSLError: {reason} ({library})\nurl: {url}', reason=exc.reason, library=exc.library, url=url)
         elif isinstance(exc, list):
-            log_error('SSLError: {error} ({errno})\nurl: {url}', errno=exc[0], error=exc[1], url=url)
+            ok_dialog(heading=localize(30968), message=localize(30969, reason='{e[1]} ({e[0]})'.format(e=exc)))
+            log_error('SSLError: {reason} ({errno})\nurl: {url}', errno=exc[0], reason=exc[1], url=url)
         else:
-            log_error('SSLError: {error}\nurl: {url}', error=str(exc), url=url)
+            ok_dialog(heading=localize(30968), message=localize(30969, reason=str(exc)))
+            log_error('SSLError: {reason}\nurl: {url}', reason=str(exc), url=url)
         return None
     except timeout as exc:
-        ok_dialog(heading=localize(30968), message=localize(30969))
-        log_error('Timeout: {error}\nurl: {url}', error=exc.reason, url=url)
+        ok_dialog(heading=localize(30968), message=localize(30969, reason=exc.reason))
+        log_error('Timeout: {reason}\nurl: {url}', reason=exc.reason, url=url)
         return None