try not to break if file can not be parsed

oml/media/__init__.py

@@ -18,6 +18,9 @@ from . import opf
 from meta.utils import decode_html_data, to_isbn13
 import settings
 
+import logging
+logger = logging.getLogger(__name__)
+
 def get_id(f=None, data=None):
     if data:
         return base64.b32encode(hashlib.sha1(data).digest()).decode()
@@ -30,15 +33,19 @@ def metadata(f, from_=None):
     data['extension'] = ext
     data['size'] = os.stat(f).st_size
 
-    if ext == 'cbr':
-        info = cbr.info(f)
-    elif ext in ('epub', 'kepub'):
-        info = epub.info(f)
-        data['extension'] = 'epub'
-    elif ext == 'pdf':
-        info = pdf.info(f)
-    elif ext == 'txt':
-        info = txt.info(f)
+    try:
+        if ext == 'cbr':
+            info = cbr.info(f)
+        elif ext in ('epub', 'kepub'):
+            info = epub.info(f)
+            data['extension'] = 'epub'
+        elif ext == 'pdf':
+            info = pdf.info(f)
+        elif ext == 'txt':
+            info = txt.info(f)
+    except:
+        logger.debug('failed to load %s info from %s', ext, f, exc_info=1)
+        info = {}
 
     opf_info = {}
     metadata_opf = os.path.join(os.path.dirname(from_ or f), 'metadata.opf')