def _mkdir(self, name, parent_node_id):
# generate random aes key (128) for folder
ul_key = [random.randint(0, 0xFFFFFFFF) for _ in range(6)]
# encrypt attribs
attribs = {'n': name}
encrypt_attribs = base64_url_encode(encrypt_attr(attribs, ul_key[:4]))
encrypted_key = a32_to_base64(encrypt_key(ul_key[:4], self.master_key))
# update attributes
data = self._api_request({
'a':
'p',
't':
parent_node_id,
'n': [{
'h': 'xxxxxxxx',
't': 1,
'a': encrypt_attribs,
'k': encrypted_key
}],
'i':
self.request_id
})
return data
def get_folder_link(self, file):
try:
file = file[1]
except (IndexError, KeyError):
pass
if 'h' in file and 'k' in file:
public_handle = self._api_request({'a': 'l', 'n': file['h']})
if public_handle == -11:
raise RequestError("Can't get a public link from that file "
"(is this a shared file?)")
decrypted_key = a32_to_base64(file['shared_folder_key'])
return (f'{self.schema}://{self.domain}'
f'/#F!{public_handle}!{decrypted_key}')
else:
raise ValidationError('File id and key must be present')
def get_link(self, file):
"""
Get a file public link from given file object
"""
file = file[1]
if 'h' in file and 'k' in file:
public_handle = self._api_request({'a': 'l', 'n': file['h']})
if public_handle == -11:
raise RequestError("Can't get a public link from that file "
"(is this a shared file?)")
decrypted_key = a32_to_base64(file['key'])
return (f'{self.schema}://{self.domain}'
f'/#!{public_handle}!{decrypted_key}')
else:
raise ValidationError('File id and key must be present')
def rename(self, file, new_name):
file = file[1]
# create new attribs
attribs = {'n': new_name}
# encrypt attribs
encrypt_attribs = base64_url_encode(encrypt_attr(attribs, file['k']))
encrypted_key = a32_to_base64(encrypt_key(file['key'],
self.master_key))
# update attributes
return self._api_request([{
'a': 'a',
'attr': encrypt_attribs,
'key': encrypted_key,
'n': file['h'],
'i': self.request_id
}])
def get_upload_link(self, file):
"""
Get a files public link inc. decrypted key
Requires upload() response as input
"""
if 'f' in file:
file = file['f'][0]
public_handle = self._api_request({'a': 'l', 'n': file['h']})
file_key = file['k'][file['k'].index(':') + 1:]
decrypted_key = a32_to_base64(
decrypt_key(base64_to_a32(file_key), self.master_key))
return (f'{self.schema}://{self.domain}'
f'/#!{public_handle}!{decrypted_key}')
else:
raise ValueError('''Upload() response required as input,
use get_link() for regular file input''')
def login_anonymous(self):
logger.info('Logging in anonymous temporary user...')
master_key = [random.randint(0, 0xFFFFFFFF)] * 4
password_key = [random.randint(0, 0xFFFFFFFF)] * 4
session_self_challenge = [random.randint(0, 0xFFFFFFFF)] * 4
user = self._api_request({
'a':
'up',
'k':
a32_to_base64(encrypt_key(master_key, password_key)),
'ts':
base64_url_encode(
a32_to_str(session_self_challenge) +
a32_to_str(encrypt_key(session_self_challenge, master_key)))
})
resp = self._api_request({'a': 'us', 'user': user})
if isinstance(resp, int):
raise RequestError(resp)
self._login_process(resp, password_key)
def import_public_file(self,
file_handle,
file_key,
dest_node=None,
dest_name=None):
"""
Import the public file into user account
"""
# Providing dest_node spare an API call to retrieve it.
if dest_node is None:
# Get '/Cloud Drive' folder no dest node specified
dest_node = self.get_node_by_type(2)[1]
# Providing dest_name spares an API call to retrieve it.
if dest_name is None:
pl_info = self.get_public_file_info(file_handle, file_key)
dest_name = pl_info['name']
key = base64_to_a32(file_key)
k = (key[0] ^ key[4], key[1] ^ key[5], key[2] ^ key[6],
key[3] ^ key[7])
encrypted_key = a32_to_base64(encrypt_key(key, self.master_key))
encrypted_name = base64_url_encode(encrypt_attr({'n': dest_name}, k))
return self._api_request({
'a':
'p',
't':
dest_node['h'],
'n': [{
'ph': file_handle,
't': 0,
'a': encrypted_name,
'k': encrypted_key
}]
})
def upload(self, filename, dest=None, dest_filename=None):
# determine storage node
if dest is None:
# if none set, upload to cloud drive node
if not hasattr(self, 'root_id'):
self.get_files()
dest = self.root_id
# request upload url, call 'u' method
with open(filename, 'rb') as input_file:
file_size = os.path.getsize(filename)
ul_url = self._api_request({'a': 'u', 's': file_size})['p']
# generate random aes key (128) for file
ul_key = [random.randint(0, 0xFFFFFFFF) for _ in range(6)]
k_str = a32_to_str(ul_key[:4])
count = Counter.new(
128, initial_value=((ul_key[4] << 32) + ul_key[5]) << 64)
aes = AES.new(k_str, AES.MODE_CTR, counter=count)
upload_progress = 0
completion_file_handle = None
mac_str = '\0' * 16
mac_encryptor = AES.new(k_str, AES.MODE_CBC,
mac_str.encode("utf8"))
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)
encryptor = AES.new(k_str, AES.MODE_CBC, iv_str)
for i in range(0, len(chunk) - 16, 16):
block = chunk[i:i + 16]
encryptor.encrypt(block)
# fix for files under 16 bytes failing
if file_size > 16:
i += 16
else:
i = 0
block = chunk[i:i + 16]
if len(block) % 16:
block += makebyte('\0' * (16 - len(block) % 16))
mac_str = mac_encryptor.encrypt(encryptor.encrypt(block))
# encrypt file and upload
chunk = aes.encrypt(chunk)
output_file = requests.post(ul_url + "/" +
str(chunk_start),
data=chunk,
timeout=self.timeout)
completion_file_handle = output_file.text
logger.info('%s of %s uploaded', upload_progress,
file_size)
else:
output_file = requests.post(ul_url + "/0",
data='',
timeout=self.timeout)
completion_file_handle = output_file.text
logger.info('Chunks uploaded')
logger.info('Setting attributes to complete upload')
logger.info('Computing attributes')
file_mac = str_to_a32(mac_str)
# determine meta mac
meta_mac = (file_mac[0] ^ file_mac[1], file_mac[2] ^ file_mac[3])
dest_filename = dest_filename or os.path.basename(filename)
attribs = {'n': dest_filename}
encrypt_attribs = base64_url_encode(
encrypt_attr(attribs, ul_key[:4]))
key = [
ul_key[0] ^ ul_key[4], ul_key[1] ^ ul_key[5],
ul_key[2] ^ meta_mac[0], ul_key[3] ^ meta_mac[1], ul_key[4],
ul_key[5], meta_mac[0], meta_mac[1]
]
encrypted_key = a32_to_base64(encrypt_key(key, self.master_key))
logger.info('Sending request to update attributes')
# update attributes
data = self._api_request({
'a':
'p',
't':
dest,
'i':
self.request_id,
'n': [{
'h': completion_file_handle,
't': 0,
'a': encrypt_attribs,
'k': encrypted_key
}]
})
logger.info('Upload complete')
return data