Merge pull request #63 from plutec/master

Upload supports empty files

mega/mega.py

@@ -199,6 +199,34 @@ class Mega(object):
 
     ##########################################################################
     # GET
+    
+    def find_path_descriptor(self, path):
+        """
+        Find descriptor of folder inside a path. i.e.: folder1/folder2/folder3
+        Params:
+            path, string like folder1/folder2/folder3
+        Return:
+            Descriptor (str) of folder3 if exists, None otherwise
+        """
+        paths = path.split('/')
+
+        files = self.get_files()
+        parent_desc = self.root_id
+        found = False
+        for foldername in paths:
+            if foldername != '':
+                for file in files.iteritems():
+                    if file[1]['a'] and file[1]['t'] and \
+                            file[1]['a']['n'] == foldername:
+                        if parent_desc == file[1]['p']:
+                            parent_desc = file[0]
+                            found = True
+                if found:
+                    found = False
+                else:
+                    return None
+        return parent_desc
+    
     def find(self, filename):
         """
         Return file object from given filename
@@ -531,7 +559,7 @@ class Mega(object):
         mac_str = '\0' * 16
         mac_encryptor = AES.new(k_str, AES.MODE_CBC, mac_str)
         iv_str = a32_to_str([ul_key[4], ul_key[5], ul_key[4], ul_key[5]])
-
+        if file_size > 0:
             for chunk_start, chunk_size in get_chunks(file_size):
                 chunk = input_file.read(chunk_size)
                 upload_progress += len(chunk)
@@ -561,6 +589,10 @@ class Mega(object):
                 if self.options.get('verbose') is True:
                     # upload progress
                     print('{0} of {1} uploaded'.format(upload_progress, file_size))
+        else:
+            output_file = requests.post(ul_url + "/0",
+                                            data='', timeout=self.timeout)
+            completion_file_handle = output_file.text
             
         file_mac = str_to_a32(mac_str)