1102 lines
36 KiB
Python
1102 lines
36 KiB
Python
import re
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import time
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import json
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import secrets
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from pathlib import Path
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import hashlib
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from Crypto.Cipher import AES
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from Crypto.PublicKey import RSA
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from Crypto.Util import Counter
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import os
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import sys
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import random
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import binascii
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import requests
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import shutil
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from .errors import ValidationError, RequestError
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from .crypto import (
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a32_to_base64, encrypt_key, base64_url_encode, encrypt_attr, base64_to_a32,
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base64_url_decode, decrypt_attr, a32_to_str, get_chunks, str_to_a32,
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decrypt_key, mpi_to_int, stringhash, prepare_key, make_id, makebyte
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)
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import tempfile
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PYTHON2 = sys.version_info < (3, )
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class Mega(object):
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def __init__(self, options=None):
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self.schema = 'https'
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self.domain = 'mega.co.nz'
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self.timeout = 160 # max secs to wait for resp from api requests
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self.sid = None
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self.sequence_num = random.randint(0, 0xFFFFFFFF)
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self.request_id = make_id(10)
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self._trash_folder_node_id = None
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if options is None:
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options = {}
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self.options = options
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def login(self, email=None, password=None):
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if email:
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self._login_user(email, password)
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else:
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self.login_anonymous()
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self._trash_folder_node_id = self.get_node_by_type(4)[0]
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return self
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def _login_user(self, email, password):
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email = email.lower()
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get_user_salt_resp = self._api_request({'a': 'us0', 'user': email})
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user_salt = None
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try:
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user_salt = base64_to_a32(get_user_salt_resp['s'])
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except KeyError:
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# v1 user account
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password_aes = prepare_key(str_to_a32(password))
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user_hash = stringhash(email, password_aes)
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else:
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# v2 user account
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pbkdf2_key = hashlib.pbkdf2_hmac(
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hash_name='sha512',
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password=password.encode(),
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salt=a32_to_str(user_salt),
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iterations=100000,
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dklen=32
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)
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password_aes = str_to_a32(pbkdf2_key[:16])
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user_hash = base64_url_encode(pbkdf2_key[-16:])
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resp = self._api_request({'a': 'us', 'user': email, 'uh': user_hash})
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if isinstance(resp, int):
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raise RequestError(resp)
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self._login_process(resp, password_aes)
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def login_anonymous(self):
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master_key = [random.randint(0, 0xFFFFFFFF)] * 4
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password_key = [random.randint(0, 0xFFFFFFFF)] * 4
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session_self_challenge = [random.randint(0, 0xFFFFFFFF)] * 4
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user = self._api_request(
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{
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'a':
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'up',
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'k':
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a32_to_base64(encrypt_key(master_key, password_key)),
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'ts':
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base64_url_encode(
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a32_to_str(session_self_challenge) + a32_to_str(
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encrypt_key(session_self_challenge, master_key)
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)
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)
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}
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)
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resp = self._api_request({'a': 'us', 'user': user})
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if isinstance(resp, int):
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raise RequestError(resp)
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self._login_process(resp, password_key)
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def _login_process(self, resp, password):
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encrypted_master_key = base64_to_a32(resp['k'])
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self.master_key = decrypt_key(encrypted_master_key, password)
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if 'tsid' in resp:
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tsid = base64_url_decode(resp['tsid'])
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key_encrypted = a32_to_str(
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encrypt_key(str_to_a32(tsid[:16]), self.master_key)
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)
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if key_encrypted == tsid[-16:]:
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self.sid = resp['tsid']
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elif 'csid' in resp:
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encrypted_rsa_private_key = base64_to_a32(resp['privk'])
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rsa_private_key = decrypt_key(
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encrypted_rsa_private_key, self.master_key
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)
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private_key = a32_to_str(rsa_private_key)
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self.rsa_private_key = [0, 0, 0, 0]
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for i in range(4):
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if PYTHON2:
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l = (
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(ord(private_key[0]) * 256 +
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ord(private_key[1]) + 7) / 8
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) + 2
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else:
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l = int(
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((private_key[0]) * 256 + (private_key[1]) + 7) / 8
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) + 2
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self.rsa_private_key[i] = mpi_to_int(private_key[:l])
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private_key = private_key[l:]
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encrypted_sid = mpi_to_int(base64_url_decode(resp['csid']))
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rsa_decrypter = RSA.construct(
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(
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self.rsa_private_key[0] * self.rsa_private_key[1], 0,
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self.rsa_private_key[2], self.rsa_private_key[0],
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self.rsa_private_key[1]
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)
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)
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sid = '%x' % rsa_decrypter.key._decrypt(encrypted_sid)
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sid = binascii.unhexlify('0' + sid if len(sid) % 2 else sid)
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self.sid = base64_url_encode(sid[:43])
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def _api_request(self, data):
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params = {'id': self.sequence_num}
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self.sequence_num += 1
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if self.sid:
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params.update({'sid': self.sid})
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# ensure input data is a list
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if not isinstance(data, list):
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data = [data]
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url = '{0}://g.api.{1}/cs'.format(self.schema, self.domain)
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req = requests.post(
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url,
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params=params,
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data=json.dumps(data),
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timeout=self.timeout,
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)
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json_resp = json.loads(req.text)
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if isinstance(json_resp, int):
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if json_resp == -3:
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time.sleep(0.2)
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return self._api_request(data=data)
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raise RequestError(json_resp)
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return json_resp[0]
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def _parse_url(self, url):
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# parse file id and key from url
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if '!' in url:
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match = re.findall(r'/#!(.*)', url)
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path = match[0]
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return path
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else:
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raise RequestError('Url key missing')
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def _process_file(self, file, shared_keys):
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if file['t'] == 0 or file['t'] == 1:
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keys = dict(
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keypart.split(':', 1)
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for keypart in file['k'].split('/')
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if ':' in keypart
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)
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uid = file['u']
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key = None
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# my objects
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if uid in keys:
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key = decrypt_key(base64_to_a32(keys[uid]), self.master_key)
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# shared folders
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elif 'su' in file and 'sk' in file and ':' in file['k']:
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shared_key = decrypt_key(
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base64_to_a32(file['sk']), self.master_key
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)
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key = decrypt_key(base64_to_a32(keys[file['h']]), shared_key)
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if file['su'] not in shared_keys:
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shared_keys[file['su']] = {}
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shared_keys[file['su']][file['h']] = shared_key
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# shared files
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elif file['u'] and file['u'] in shared_keys:
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for hkey in shared_keys[file['u']]:
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shared_key = shared_keys[file['u']][hkey]
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if hkey in keys:
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key = keys[hkey]
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key = decrypt_key(base64_to_a32(key), shared_key)
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break
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if file['h'] and file['h'] in shared_keys.get('EXP', ()):
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shared_key = shared_keys['EXP'][file['h']]
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encrypted_key = str_to_a32(
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base64_url_decode(file['k'].split(':')[-1])
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)
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key = decrypt_key(encrypted_key, shared_key)
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file['shared_folder_key'] = shared_key
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if key is not None:
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# file
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if file['t'] == 0:
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k = (
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key[0] ^ key[4], key[1] ^ key[5], key[2] ^ key[6],
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key[3] ^ key[7]
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)
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file['iv'] = key[4:6] + (0, 0)
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file['meta_mac'] = key[6:8]
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# folder
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else:
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k = key
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file['key'] = key
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file['k'] = k
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attributes = base64_url_decode(file['a'])
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attributes = decrypt_attr(attributes, k)
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file['a'] = attributes
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# other => wrong object
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elif file['k'] == '':
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file['a'] = False
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elif file['t'] == 2:
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self.root_id = file['h']
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file['a'] = {'n': 'Cloud Drive'}
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elif file['t'] == 3:
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self.inbox_id = file['h']
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file['a'] = {'n': 'Inbox'}
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elif file['t'] == 4:
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self.trashbin_id = file['h']
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file['a'] = {'n': 'Rubbish Bin'}
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return file
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def _init_shared_keys(self, files, shared_keys):
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"""
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Init shared key not associated with a user.
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Seems to happen when a folder is shared,
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some files are exchanged and then the
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folder is un-shared.
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Keys are stored in files['s'] and files['ok']
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"""
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ok_dict = {}
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for ok_item in files['ok']:
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shared_key = decrypt_key(
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base64_to_a32(ok_item['k']), self.master_key
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)
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ok_dict[ok_item['h']] = shared_key
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for s_item in files['s']:
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if s_item['u'] not in shared_keys:
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shared_keys[s_item['u']] = {}
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if s_item['h'] in ok_dict:
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shared_keys[s_item['u']][s_item['h']] = ok_dict[s_item['h']]
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self.shared_keys = shared_keys
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def find_path_descriptor(self, path, files=()):
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"""
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Find descriptor of folder inside a path. i.e.: folder1/folder2/folder3
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Params:
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path, string like folder1/folder2/folder3
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Return:
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Descriptor (str) of folder3 if exists, None otherwise
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"""
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paths = path.split('/')
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files = files or self.get_files()
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parent_desc = self.root_id
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found = False
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for foldername in paths:
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if foldername != '':
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for file in files.items():
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if (
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file[1]['a'] and
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file[1]['t'] and
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file[1]['a']['n'] == foldername
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):
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if parent_desc == file[1]['p']:
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parent_desc = file[0]
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found = True
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if found:
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found = False
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else:
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return None
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return parent_desc
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def find(self, filename=None, handle=None, exclude_deleted=False):
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"""
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Return file object from given filename
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"""
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files = self.get_files()
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if handle:
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return files[handle]
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path = Path(filename)
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filename = path.name
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parent_dir_name = path.parent.name
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for file in list(files.items()):
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parent_node_id = None
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if parent_dir_name:
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parent_node_id = self.find_path_descriptor(
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parent_dir_name, files=files
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)
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if (
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filename and parent_node_id and
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file[1]['a'] and file[1]['a']['n'] == filename and
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parent_node_id == file[1]['p']
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):
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if (
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exclude_deleted and
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self._trash_folder_node_id == file[1]['p']
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):
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continue
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return file
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if (
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filename and
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file[1]['a'] and file[1]['a']['n'] == filename
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):
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if (
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exclude_deleted and
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self._trash_folder_node_id == file[1]['p']
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):
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continue
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return file
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def get_files(self):
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"""
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Get all files in account
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"""
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files = self._api_request({'a': 'f', 'c': 1, 'r': 1})
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files_dict = {}
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shared_keys = {}
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self._init_shared_keys(files, shared_keys)
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for file in files['f']:
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processed_file = self._process_file(file, shared_keys)
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# ensure each file has a name before returning
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if processed_file['a']:
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files_dict[file['h']] = processed_file
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return files_dict
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def get_upload_link(self, file):
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"""
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Get a files public link inc. decrypted key
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Requires upload() response as input
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"""
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if 'f' in file:
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file = file['f'][0]
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public_handle = self._api_request({'a': 'l', 'n': file['h']})
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file_key = file['k'][file['k'].index(':') + 1:]
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decrypted_key = a32_to_base64(
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decrypt_key(base64_to_a32(file_key), self.master_key)
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)
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return '{0}://{1}/#!{2}!{3}'.format(
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self.schema, self.domain, public_handle, decrypted_key
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)
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else:
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raise ValueError(
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'''Upload() response required as input,
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use get_link() for regular file input'''
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)
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def get_link(self, file):
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"""
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Get a file public link from given file object
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"""
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file = file[1]
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if 'h' in file and 'k' in file:
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public_handle = self._api_request({'a': 'l', 'n': file['h']})
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if public_handle == -11:
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raise RequestError(
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"Can't get a public link from that file "
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"(is this a shared file?)"
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)
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decrypted_key = a32_to_base64(file['key'])
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return '{0}://{1}/#!{2}!{3}'.format(
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self.schema, self.domain, public_handle, decrypted_key
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)
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else:
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raise ValidationError('File id and key must be present')
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def _node_data(self, node):
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try:
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return node[1]
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except (IndexError, KeyError):
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return node
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|
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def get_folder_link(self, file):
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try:
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file = file[1]
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except (IndexError, KeyError):
|
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pass
|
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if 'h' in file and 'k' in file:
|
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public_handle = self._api_request({'a': 'l', 'n': file['h']})
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if public_handle == -11:
|
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raise RequestError(
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"Can't get a public link from that file "
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|
"(is this a shared file?)"
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)
|
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decrypted_key = a32_to_base64(file['shared_folder_key'])
|
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return '{0}://{1}/#F!{2}!{3}'.format(
|
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self.schema, self.domain, public_handle, decrypted_key
|
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)
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else:
|
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raise ValidationError('File id and key must be present')
|
|
|
|
def get_user(self):
|
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user_data = self._api_request({'a': 'ug'})
|
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return user_data
|
|
|
|
def get_node_by_type(self, type):
|
|
"""
|
|
Get a node by it's numeric type id, e.g:
|
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0: file
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1: dir
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2: special: root cloud drive
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3: special: inbox
|
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4: special trash bin
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|
"""
|
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nodes = self.get_files()
|
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for node in list(nodes.items()):
|
|
if node[1]['t'] == type:
|
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return node
|
|
|
|
def get_files_in_node(self, target):
|
|
"""
|
|
Get all files in a given target, e.g. 4=trash
|
|
"""
|
|
if type(target) == int:
|
|
# convert special nodes (e.g. trash)
|
|
node_id = self.get_node_by_type(target)
|
|
else:
|
|
node_id = [target]
|
|
|
|
files = self._api_request({'a': 'f', 'c': 1})
|
|
files_dict = {}
|
|
shared_keys = {}
|
|
self._init_shared_keys(files, shared_keys)
|
|
for file in files['f']:
|
|
processed_file = self._process_file(file, shared_keys)
|
|
if processed_file['a'] and processed_file['p'] == node_id[0]:
|
|
files_dict[file['h']] = processed_file
|
|
return files_dict
|
|
|
|
def get_id_from_public_handle(self, public_handle):
|
|
# get node data
|
|
node_data = self._api_request({'a': 'f', 'f': 1, 'p': public_handle})
|
|
node_id = self.get_id_from_obj(node_data)
|
|
return node_id
|
|
|
|
def get_id_from_obj(self, node_data):
|
|
"""
|
|
Get node id from a file object
|
|
"""
|
|
node_id = None
|
|
|
|
for i in node_data['f']:
|
|
if i['h'] != '':
|
|
node_id = i['h']
|
|
return node_id
|
|
|
|
def get_quota(self):
|
|
"""
|
|
Get current remaining disk quota in MegaBytes
|
|
"""
|
|
json_resp = self._api_request(
|
|
{
|
|
'a': 'uq',
|
|
'xfer': 1,
|
|
'strg': 1,
|
|
'v': 1
|
|
}
|
|
)
|
|
# convert bytes to megabyes
|
|
return json_resp['mstrg'] / 1048576
|
|
|
|
def get_storage_space(self, giga=False, mega=False, kilo=False):
|
|
"""
|
|
Get the current storage space.
|
|
Return a dict containing at least:
|
|
'used' : the used space on the account
|
|
'total' : the maximum space allowed with current plan
|
|
All storage space are in bytes unless asked differently.
|
|
"""
|
|
if sum(1 if x else 0 for x in (kilo, mega, giga)) > 1:
|
|
raise ValueError("Only one unit prefix can be specified")
|
|
unit_coef = 1
|
|
if kilo:
|
|
unit_coef = 1024
|
|
if mega:
|
|
unit_coef = 1048576
|
|
if giga:
|
|
unit_coef = 1073741824
|
|
json_resp = self._api_request({'a': 'uq', 'xfer': 1, 'strg': 1})
|
|
return {
|
|
'used': json_resp['cstrg'] / unit_coef,
|
|
'total': json_resp['mstrg'] / unit_coef,
|
|
}
|
|
|
|
def get_balance(self):
|
|
"""
|
|
Get account monetary balance, Pro accounts only
|
|
"""
|
|
user_data = self._api_request({"a": "uq", "pro": 1})
|
|
if 'balance' in user_data:
|
|
return user_data['balance']
|
|
|
|
def delete(self, public_handle):
|
|
"""
|
|
Delete a file by its public handle
|
|
"""
|
|
return self.move(public_handle, 4)
|
|
|
|
def delete_url(self, url):
|
|
"""
|
|
Delete a file by its url
|
|
"""
|
|
path = self._parse_url(url).split('!')
|
|
public_handle = path[0]
|
|
file_id = self.get_id_from_public_handle(public_handle)
|
|
return self.move(file_id, 4)
|
|
|
|
def destroy(self, file_id):
|
|
"""
|
|
Destroy a file by its private id
|
|
"""
|
|
return self._api_request(
|
|
{
|
|
'a': 'd',
|
|
'n': file_id,
|
|
'i': self.request_id
|
|
}
|
|
)
|
|
|
|
def destroy_url(self, url):
|
|
"""
|
|
Destroy a file by its url
|
|
"""
|
|
path = self._parse_url(url).split('!')
|
|
public_handle = path[0]
|
|
file_id = self.get_id_from_public_handle(public_handle)
|
|
return self.destroy(file_id)
|
|
|
|
def empty_trash(self):
|
|
# get list of files in rubbish out
|
|
files = self.get_files_in_node(4)
|
|
|
|
# make a list of json
|
|
if files != {}:
|
|
post_list = []
|
|
for file in files:
|
|
post_list.append({"a": "d", "n": file, "i": self.request_id})
|
|
return self._api_request(post_list)
|
|
|
|
def download(self, file, dest_path=None, dest_filename=None):
|
|
"""
|
|
Download a file by it's file object
|
|
"""
|
|
self._download_file(
|
|
None,
|
|
None,
|
|
file=file[1],
|
|
dest_path=dest_path,
|
|
dest_filename=dest_filename,
|
|
is_public=False
|
|
)
|
|
|
|
def _export_file(self, node):
|
|
node_data = self._node_data(node)
|
|
self._api_request([
|
|
{
|
|
'a': 'l',
|
|
'n': node_data['h'],
|
|
'i': self.request_id
|
|
}
|
|
])
|
|
return self.get_link(node)
|
|
|
|
def export(self, path=None, node_id=None):
|
|
nodes = self.get_files()
|
|
if node_id:
|
|
node = nodes[node_id]
|
|
else:
|
|
node = self.find(path)
|
|
|
|
node_data = self._node_data(node)
|
|
is_file_node = node_data['t'] == 0
|
|
if is_file_node:
|
|
return self._export_file(node)
|
|
if node:
|
|
try:
|
|
# If already exported
|
|
return self.get_folder_link(node)
|
|
except (RequestError, KeyError):
|
|
pass
|
|
|
|
master_key_cipher = AES.new(a32_to_str(self.master_key), AES.MODE_ECB)
|
|
ha = base64_url_encode(
|
|
master_key_cipher.encrypt(node_data['h'] + node_data['h'])
|
|
)
|
|
|
|
share_key = secrets.token_bytes(16)
|
|
ok = base64_url_encode(master_key_cipher.encrypt(share_key))
|
|
|
|
share_key_cipher = AES.new(share_key, AES.MODE_ECB)
|
|
node_key = node_data['k']
|
|
encrypted_node_key = base64_url_encode(
|
|
share_key_cipher.encrypt(a32_to_str(node_key))
|
|
)
|
|
|
|
node_id = node_data['h']
|
|
request_body = [
|
|
{
|
|
'a': 's2',
|
|
'n': node_id,
|
|
's': [{
|
|
'u': 'EXP',
|
|
'r': 0
|
|
}],
|
|
'i': self.request_id,
|
|
'ok': ok,
|
|
'ha': ha,
|
|
'cr': [[node_id], [node_id], [0, 0, encrypted_node_key]]
|
|
}
|
|
]
|
|
self._api_request(request_body)
|
|
nodes = self.get_files()
|
|
return self.get_folder_link(nodes[node_id])
|
|
|
|
def download_url(self, url, dest_path=None, dest_filename=None):
|
|
"""
|
|
Download a file by it's public url
|
|
"""
|
|
path = self._parse_url(url).split('!')
|
|
file_id = path[0]
|
|
file_key = path[1]
|
|
self._download_file(
|
|
file_id, file_key, dest_path, dest_filename, is_public=True
|
|
)
|
|
|
|
def _download_file(
|
|
self,
|
|
file_handle,
|
|
file_key,
|
|
dest_path=None,
|
|
dest_filename=None,
|
|
is_public=False,
|
|
file=None
|
|
):
|
|
if file is None:
|
|
if is_public:
|
|
file_key = base64_to_a32(file_key)
|
|
file_data = self._api_request(
|
|
{
|
|
'a': 'g',
|
|
'g': 1,
|
|
'p': file_handle
|
|
}
|
|
)
|
|
else:
|
|
file_data = self._api_request(
|
|
{
|
|
'a': 'g',
|
|
'g': 1,
|
|
'n': file_handle
|
|
}
|
|
)
|
|
|
|
k = (
|
|
file_key[0] ^ file_key[4], file_key[1] ^ file_key[5],
|
|
file_key[2] ^ file_key[6], file_key[3] ^ file_key[7]
|
|
)
|
|
iv = file_key[4:6] + (0, 0)
|
|
meta_mac = file_key[6:8]
|
|
else:
|
|
file_data = self._api_request({'a': 'g', 'g': 1, 'n': file['h']})
|
|
k = file['k']
|
|
iv = file['iv']
|
|
meta_mac = file['meta_mac']
|
|
|
|
# Seems to happens sometime... When this occurs, files are
|
|
# inaccessible also in the official also in the official web app.
|
|
# Strangely, files can come back later.
|
|
if 'g' not in file_data:
|
|
raise RequestError('File not accessible anymore')
|
|
file_url = file_data['g']
|
|
file_size = file_data['s']
|
|
attribs = base64_url_decode(file_data['at'])
|
|
attribs = decrypt_attr(attribs, k)
|
|
|
|
if dest_filename is not None:
|
|
file_name = dest_filename
|
|
else:
|
|
file_name = attribs['n']
|
|
|
|
input_file = requests.get(file_url, stream=True).raw
|
|
|
|
if dest_path is None:
|
|
dest_path = ''
|
|
else:
|
|
dest_path += '/'
|
|
|
|
temp_output_file = tempfile.NamedTemporaryFile(
|
|
mode='w+b', prefix='megapy_', delete=False
|
|
)
|
|
|
|
k_str = a32_to_str(k)
|
|
counter = Counter.new(128, initial_value=((iv[0] << 32) + iv[1]) << 64)
|
|
aes = AES.new(k_str, AES.MODE_CTR, counter=counter)
|
|
|
|
mac_str = '\0' * 16
|
|
mac_encryptor = AES.new(k_str, AES.MODE_CBC, mac_str)
|
|
iv_str = a32_to_str([iv[0], iv[1], iv[0], iv[1]])
|
|
|
|
for chunk_start, chunk_size in get_chunks(file_size):
|
|
chunk = input_file.read(chunk_size)
|
|
chunk = aes.decrypt(chunk)
|
|
temp_output_file.write(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 += '\0' * (16 - (len(block) % 16))
|
|
mac_str = mac_encryptor.encrypt(encryptor.encrypt(block))
|
|
|
|
if self.options.get('verbose') is True:
|
|
# temp file size
|
|
file_info = os.stat(temp_output_file.name)
|
|
print((
|
|
'{0} of {1} downloaded'.format(
|
|
file_info.st_size, file_size
|
|
)
|
|
))
|
|
|
|
file_mac = str_to_a32(mac_str)
|
|
|
|
temp_output_file.close()
|
|
|
|
# check mac integrity
|
|
if (file_mac[0] ^ file_mac[1], file_mac[2] ^ file_mac[3]) != meta_mac:
|
|
raise ValueError('Mismatched mac')
|
|
|
|
shutil.move(temp_output_file.name, dest_path + file_name)
|
|
|
|
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
|
|
input_file = open(filename, 'rb')
|
|
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)
|
|
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
|
|
|
|
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)
|
|
|
|
# determine meta mac
|
|
meta_mac = (file_mac[0] ^ file_mac[1], file_mac[2] ^ file_mac[3])
|
|
|
|
if dest_filename is not None:
|
|
attribs = {'n': dest_filename}
|
|
else:
|
|
attribs = {'n': os.path.basename(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))
|
|
# update attributes
|
|
data = self._api_request(
|
|
{
|
|
'a':
|
|
'p',
|
|
't':
|
|
dest,
|
|
'n': [
|
|
{
|
|
'h': completion_file_handle,
|
|
't': 0,
|
|
'a': encrypt_attribs,
|
|
'k': encrypted_key
|
|
}
|
|
]
|
|
}
|
|
)
|
|
# close input file and return API msg
|
|
input_file.close()
|
|
return data
|
|
|
|
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 _root_node_id(self):
|
|
if not hasattr(self, 'root_id'):
|
|
self.get_files()
|
|
return self.root_id
|
|
|
|
def create_folder(self, name, dest=None):
|
|
dirs = tuple(dir_name for dir_name in str(name).split('/') if dir_name)
|
|
folder_node_ids = {}
|
|
for idx, directory_name in enumerate(dirs):
|
|
existing_node_id = self.find_path_descriptor(directory_name)
|
|
if existing_node_id:
|
|
folder_node_ids[idx] = existing_node_id
|
|
continue
|
|
if idx == 0:
|
|
if dest is None:
|
|
parent_node_id = self._root_node_id()
|
|
else:
|
|
parent_node_id = dest
|
|
else:
|
|
parent_node_id = folder_node_ids[idx - 1]
|
|
created_node = self._mkdir(
|
|
name=directory_name, parent_node_id=parent_node_id
|
|
)
|
|
node_id = created_node['f'][0]['h']
|
|
folder_node_ids[idx] = node_id
|
|
return dict(zip(dirs, folder_node_ids.values()))
|
|
|
|
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
|
|
data = self._api_request(
|
|
[
|
|
{
|
|
'a': 'a',
|
|
'attr': encrypt_attribs,
|
|
'key': encrypted_key,
|
|
'n': file['h'],
|
|
'i': self.request_id
|
|
}
|
|
]
|
|
)
|
|
return data
|
|
|
|
def move(self, file_id, target):
|
|
"""
|
|
Move a file to another parent node
|
|
params:
|
|
a : command
|
|
n : node we're moving
|
|
t : id of target parent node, moving to
|
|
i : request id
|
|
|
|
targets
|
|
2 : root
|
|
3 : inbox
|
|
4 : trash
|
|
|
|
or...
|
|
target's id
|
|
or...
|
|
target's structure returned by find()
|
|
"""
|
|
|
|
# determine target_node_id
|
|
if type(target) == int:
|
|
target_node_id = str(self.get_node_by_type(target)[0])
|
|
elif type(target) in (str, str):
|
|
target_node_id = target
|
|
else:
|
|
file = target[1]
|
|
target_node_id = file['h']
|
|
return self._api_request(
|
|
{
|
|
'a': 'm',
|
|
'n': file_id,
|
|
't': target_node_id,
|
|
'i': self.request_id
|
|
}
|
|
)
|
|
|
|
def add_contact(self, email):
|
|
"""
|
|
Add another user to your mega contact list
|
|
"""
|
|
return self._edit_contact(email, True)
|
|
|
|
def remove_contact(self, email):
|
|
"""
|
|
Remove a user to your mega contact list
|
|
"""
|
|
return self._edit_contact(email, False)
|
|
|
|
def _edit_contact(self, email, add):
|
|
"""
|
|
Editing contacts
|
|
"""
|
|
if add is True:
|
|
l = '1' # add command
|
|
elif add is False:
|
|
l = '0' # remove command
|
|
else:
|
|
raise ValidationError('add parameter must be of type bool')
|
|
|
|
if not re.match(r"[^@]+@[^@]+\.[^@]+", email):
|
|
ValidationError('add_contact requires a valid email address')
|
|
else:
|
|
return self._api_request(
|
|
{
|
|
'a': 'ur',
|
|
'u': email,
|
|
'l': l,
|
|
'i': self.request_id
|
|
}
|
|
)
|
|
|
|
def get_public_url_info(self, url):
|
|
"""
|
|
Get size and name from a public url, dict returned
|
|
"""
|
|
file_handle, file_key = self._parse_url(url).split('!')
|
|
return self.get_public_file_info(file_handle, file_key)
|
|
|
|
def import_public_url(self, url, dest_node=None, dest_name=None):
|
|
"""
|
|
Import the public url into user account
|
|
"""
|
|
file_handle, file_key = self._parse_url(url).split('!')
|
|
return self.import_public_file(
|
|
file_handle, file_key, dest_node=dest_node, dest_name=dest_name
|
|
)
|
|
|
|
def get_public_file_info(self, file_handle, file_key):
|
|
"""
|
|
Get size and name of a public file
|
|
"""
|
|
data = self._api_request({'a': 'g', 'p': file_handle, 'ssm': 1})
|
|
if isinstance(data, int):
|
|
raise RequestError(data)
|
|
|
|
if 'at' not in data or 's' not in data:
|
|
raise ValueError("Unexpected result", data)
|
|
|
|
key = base64_to_a32(file_key)
|
|
k = (
|
|
key[0] ^ key[4], key[1] ^ key[5], key[2] ^ key[6], key[3] ^ key[7]
|
|
)
|
|
|
|
size = data['s']
|
|
unencrypted_attrs = decrypt_attr(base64_url_decode(data['at']), k)
|
|
if not unencrypted_attrs:
|
|
return None
|
|
|
|
result = {'size': size, 'name': unencrypted_attrs['n']}
|
|
|
|
return result
|
|
|
|
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))
|
|
|
|
data = self._api_request(
|
|
{
|
|
'a':
|
|
'p',
|
|
't':
|
|
dest_node['h'],
|
|
'n': [
|
|
{
|
|
'ph': file_handle,
|
|
't': 0,
|
|
'a': encrypted_name,
|
|
'k': encrypted_key
|
|
}
|
|
]
|
|
}
|
|
)
|
|
return data
|