[api] handle the situation when mime type does not exist in the MIME_MAP

api/mime.py

@@ -414,18 +414,20 @@ zip application/zip
 """
 
 MIME_MAP = {}
+
 for line in mime_str.splitlines():
     pair = line.split()
     if len(pair) == 2:
-        MIME_MAP[pair[0]] = pair[1]
-
+            MIME_MAP[pair[0]] = pair[1]
 
 def get_file_mime(name):
-    sufix = os.path.splitext(name)[1][1:]
-    if sufix:
-        return MIME_MAP[sufix]
-    return None
-
+    try:
+        sufix = os.path.splitext(name)[1][1:]
+        if sufix:
+            return MIME_MAP[sufix]
+        return None
+    except Exception, e:
+        return None
 
 if __name__ == "__main__":
     print MIME_MAP