More tidyup

changedetectionio/fetch_processor/__init__.py

@@ -1,4 +1,7 @@
 class fetch_processor():
+    contents = b''
+    screenshot = None
+
     """
     base class for all fetch processors
     - json_html_plaintext

changedetectionio/fetch_processor/json_html_plaintext.py

@@ -14,7 +14,7 @@ from . import fetch_processor
 # Some common stuff here that can be moved to a base class
 # (set_proxy_from_list)
 class perform_site_check(fetch_processor):
-    screenshot = None
+
     xpath_data = None
 
     # Doesn't look like python supports forward slash auto enclosure in re.findall
@@ -284,5 +284,6 @@ class perform_site_check(fetch_processor):
         if not watch.get('previous_md5'):
             watch['previous_md5'] = fetched_md5
 
-        # @todo text_content_before_ignored_filter can be removed? save it here?
+        self.contents = text_content_before_ignored_filter
-        return changed_detected, update_obj, text_content_before_ignored_filter
+
+        return changed_detected, update_obj

changedetectionio/update_worker.py

@@ -132,22 +132,20 @@ class update_worker(threading.Thread):
                 self.current_uuid = uuid
 
                 if uuid in list(self.datastore.data['watching'].keys()):
+                    update_handler = None # Interface object
                     changed_detected = False
-                    contents = b''
-                    screenshot = False
                     update_obj= {}
-                    xpath_data = False
                     process_changedetection_results = True
                     print("> Processing UUID {} Priority {} URL {}".format(uuid, priority, self.datastore.data['watching'][uuid]['url']))
                     now = time.time()
 
                     try:
                         update_handler = json_html_plaintext.perform_site_check(datastore=self.datastore)
-                        changed_detected, update_obj, contents = update_handler.run(uuid)
+                        changed_detected, update_obj = update_handler.run(uuid)
                         # Re #342
                         # In Python 3, all strings are sequences of Unicode characters. There is a bytes type that holds raw bytes.
                         # We then convert/.decode('utf-8') for the notification etc
-                        if not isinstance(contents, (bytes, bytearray)):
+                        if not isinstance(update_handler.contents, (bytes, bytearray)):
                             raise Exception("Error - returned data from the fetch handler SHOULD be bytes")
                     except PermissionError as e:
                         self.app.logger.error("File permission error updating", uuid, str(e))
@@ -257,7 +255,7 @@ class update_worker(threading.Thread):
                             # For the FIRST time we check a site, or a change detected, save the snapshot.
                             if changed_detected or not watch['last_checked']:
                                 # A change was detected
-                                watch.save_history_text(contents=contents, timestamp=str(round(time.time())))
+                                watch.save_history_text(contents=update_handler.contents, timestamp=str(round(time.time())))
 
                             self.datastore.update_watch(uuid=uuid, update_obj=update_obj)