Fix file size conversion for gftracker

sickbeard/providers/gftracker.py

@@ -24,6 +24,7 @@ import traceback
 from sickbeard import logger
 from sickbeard import tvcache
 from sickbeard.bs4_parser import BS4Parser
+from sickrage.helper.common import convert_size
 from sickrage.helper.exceptions import AuthException
 from sickrage.providers.torrent.TorrentProvider import TorrentProvider
 
@@ -126,10 +127,7 @@ class GFTrackerProvider(TorrentProvider):
                                 leechers = int(shares[1])
 
                                 torrent_size = cells[7].get_text().split("/", 1)[0]
-                                if re.match(r"\d+([,\.]\d+)?\s*[KkMmGgTt]?[Bb]", torrent_size):
-                                    size = self._convertSize(torrent_size.strip())
-                                else:
-                                    size = -1
+                                size = convert_size(torrent_size) or -1
 
                             except (AttributeError, TypeError):
                                 continue
@@ -162,23 +160,6 @@ class GFTrackerProvider(TorrentProvider):
     def seed_ratio(self):
         return self.ratio
 
-    def _convertSize(self, sizeString):
-        size = sizeString[:-2].strip()
-        modifier = sizeString[-2:].upper()
-        try:
-            size = float(size)
-            if modifier in 'KB':
-                size *= 1024 ** 1
-            elif modifier in 'MB':
-                size *= 1024 ** 2
-            elif modifier in 'GB':
-                size *= 1024 ** 3
-            elif modifier in 'TB':
-                size *= 1024 ** 4
-        except Exception:
-            size = -1
-        return long(size)
-
 
 class GFTrackerCache(tvcache.TVCache):
     def __init__(self, provider_obj):