def save_passport(self, file: InMemoryUploadedFile):
if self.passport_path:
self.passport_path.unlink()
default_storage.save(
self.folder_path /
f"{PAYER_PASSPORT_SLUG}{Path(file.name).suffix}",
ContentFile(file.open().read()))
def save_study_document(self, file: InMemoryUploadedFile):
if self.study_document_path:
self.study_document_path.unlink()
default_storage.save(
self.folder_path /
f"{STUDY_DOCUMENT_SLUG}{Path(file.name).suffix}".replace(" ", "_"),
ContentFile(file.open().read()))
def check_type_file(file_path=None, file_in_memory: InMemoryUploadedFile = None):
first_bytes = b''
if file_path:
first_bytes = open(file_path).read(2048)
elif file_in_memory:
first_bytes = file_in_memory.open().read(2048)
type_file = magic.from_buffer(first_bytes).lower()
return "pdf" in type_file or "jpeg" in type_file
def split_text(self, textfile: uploadedfile.InMemoryUploadedFile,
max_lines):
"""
Splits the textfile into smaller files with at most max_lines sentences.
A list of SimpleUploadedFile objects is returned.
"""
filename = textfile.name
textfiles = []
# get encoding
textfile.open(mode='rb')
encoding = chardet.detect(textfile.read())['encoding']
# put all sentences in a list
filecontent = [] # list of all sentences in the textfile
sentence = '' # one sentence in the textfile that is resetted after every \n\n and added to filecontent
# the open method simply does seek(0). This needs to be done, because the file was already opened to find the encoding
textfile.open()
for line in textfile:
line = line.decode(encoding=encoding)
# this will not work if the newline character is just '\r'
line = line.replace('\r', '')
if line == '\n':
if sentence != '':
filecontent.append(sentence)
sentence = ''
else:
sentence += line.replace('\n', '')
if sentence != '':
filecontent.append(sentence)
# end of gathering filecontent
# validate max_lines
self.check_max_lines(max_lines, len(filecontent))
# create SimpleUploadedFiles with max_lines of content from the textfile
for i in range(math.ceil(len(filecontent) / max_lines)):
filesentences, filecontent = filecontent[:max_lines], filecontent[
max_lines:]
content = ''
for sentence in filesentences:
content += sentence + '\n\n'
new_filename = f'{filename[:-4]}_{i + 1}{filename[-4:]}'
textfiles.append(
uploadedfile.SimpleUploadedFile(new_filename,
content.encode('utf-8-sig')))
return textfiles
def _file_save(self, new_pil_obj, version, format, model_instance, file):
"""Save our version files to disk"""
img_version_buffer = StringIO.StringIO()
new_pil_obj.save(img_version_buffer, format)
img_version_buffer = InMemoryUploadedFile(
file=img_version_buffer,
field_name=None,
name='foo',
content_type='image/%s' % format,
size=img_version_buffer.len,
charset=None)
img_version_buffer.open() # reopen just in case, which sets Django's File-like object to seek=0
filename = version['upload_to'](model_instance, file.name)
# delete first to prevent save() from possibily creating a new uniquely named file
# we want to replace the file, which save() may not do natively
file.field.storage.delete(filename)
file.field.storage.save(filename, img_version_buffer)
def test_open_resets_file_to_start_and_returns_context_manager(self):
uf = InMemoryUploadedFile(StringIO('1'), '', 'test', 'text/plain', 1, 'utf8')
uf.read()
with uf.open() as f:
self.assertEqual(f.read(), '1')
def test_open_resets_file_to_start_and_returns_context_manager(self):
uf = InMemoryUploadedFile(StringIO('1'), '', 'test', 'text/plain', 1, 'utf8')
uf.read()
with uf.open() as f:
self.assertEqual(f.read(), '1')
def mutate(self, info, file: InMemoryUploadedFile, **kwargs):
with file.open('rb') as fd:
content = fd.read().decode('utf8')
return UploadMutation(success=True, content=content)
def test_open_resets_file_to_start_and_returns_context_manager(self):
uf = InMemoryUploadedFile(StringIO("1"), "", "test", "text/plain", 1,
"utf8")
uf.read()
with uf.open() as f:
self.assertEqual(f.read(), "1")