__detect_mime_type is broken

[weddige]

__detect_mime_type has a bug in line 66/67:

ezodf/ezodf/document.py

Lines 56 to 68 in f9675c1

	def __detect_mime_type(file_manager):
	mime_type = file_manager.get_text('mimetype')
	if mime_type is not None:
	return mime_type
	# Fall-through to next mechanism
	entry = file_manager.manifest.find('/')
	if entry is not None:
	mime_type = entry.get(CN('manifest:media-type'))
	else:
	# use file ext name
	ext = os.path.splitext(file_manager.zipname)[1]
	mime_type = MIMETYPES[ext]
	return mime_type

os.path.splitext returns the file extension with a leading dot (e. g. .ods). But MIMETYPES only contains the extensions without the dot:

ezodf/ezodf/const.py

Line 23 in f9675c1

'ots': "application/vnd.oasis.opendocument.spreadsheet-template",

[kenchou]

emmm, This function is introduced by me...

ext = os.path.splitext(file_manager.zipname)[1]
should be
ext = os.path.splitext(file_manager.zipname)[1][1:]

I will create a PR later.