Update optional pydrive requirement

Bugfix cover url download for Wand insted of Pillow
Fix for gdrive with unknown certificates

cps/gdriveutils.py

@@ -21,6 +21,7 @@ import os
 import json
 import shutil
 import chardet
+import ssl
 
 from flask import Response, stream_with_context
 from sqlalchemy import create_engine
@@ -216,7 +217,7 @@ def listRootFolders():
         drive = getDrive(Gdrive.Instance().drive)
         folder = "'root' in parents and mimeType = 'application/vnd.google-apps.folder' and trashed = false"
         fileList = drive.ListFile({'q': folder}).GetList()
-    except ServerNotFoundError as e:
+    except (ServerNotFoundError, ssl.SSLError) as e:
         log.info("GDrive Error %s" % e)
         fileList = []
     return fileList

cps/helper.py

@@ -63,6 +63,7 @@ log = logger.create()
 
 try:
     from wand.image import Image
+    from wand.exceptions import MissingDelegateError
     use_IM = True
 except (ImportError, RuntimeError) as e:
     log.debug('Cannot import Image, generating covers from non jpg files will not work: %s', e)
@@ -585,9 +586,9 @@ def save_cover_from_url(url, book_path):
             requests.exceptions.Timeout) as ex:
         log.info(u'Cover Download Error %s', ex)
         return False, _("Error Downloading Cover")
-#    except UnidentifiedImageError as ex:
-#        log.info(u'File Format Error %s', ex)
-#        return False, _("Cover Format Error")
+    except MissingDelegateError as ex:
+        log.info(u'File Format Error %s', ex)
+        return False, _("Cover Format Error")
 
 
 def save_cover_from_filestorage(filepath, saved_filename, img):

optional-requirements.txt

@@ -7,7 +7,7 @@ oauth2client>=4.0.0,<4.1.4
 uritemplate>=3.0.0,<3.1.0
 pyasn1-modules>=0.0.8,<0.3.0
 pyasn1>=0.1.9,<0.5.0
-PyDrive>=1.3.1,<1.4.0
+PyDrive2>=1.3.1,<1.8.0
 PyYAML>=3.12
 rsa==3.4.2,<4.1.0
 six>=1.10.0,<1.15.0