Merge branch 'master' into docs

This commit is contained in:
Dan 2018-03-26 03:15:42 +02:00
commit e9817400a3
3 changed files with 16 additions and 47 deletions

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@ -18,9 +18,16 @@
import logging
import socket
import sys
from collections import namedtuple
try:
import socks
except ImportError:
sys.exit(
"PySocks is missing and Pyrogram can't run without. "
"Please install it using \"pip3 install pysocks\"."
)
log = logging.getLogger(__name__)

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@ -16,52 +16,34 @@
# You should have received a copy of the GNU Lesser General Public License
# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
import logging
log = logging.getLogger(__name__)
import sys
try:
import tgcrypto
except ImportError:
log.warning(
"TgCrypto is missing! "
"Pyrogram will work the same, but at a much slower speed. "
sys.exit(
"TgCrypto is missing and Pyrogram can't run without. "
"Please install it using \"pip3 install tgcrypto\". "
"More info: https://docs.pyrogram.ml/resources/TgCrypto"
)
is_fast = False
import pyaes
else:
log.info("Using TgCrypto")
is_fast = True
# TODO: Ugly IFs
class AES:
@classmethod
def ige_encrypt(cls, data: bytes, key: bytes, iv: bytes) -> bytes:
if is_fast:
return tgcrypto.ige_encrypt(data, key, iv)
else:
return cls.ige(data, key, iv, True)
@classmethod
def ige_decrypt(cls, data: bytes, key: bytes, iv: bytes) -> bytes:
if is_fast:
return tgcrypto.ige_decrypt(data, key, iv)
else:
return cls.ige(data, key, iv, False)
@staticmethod
def ctr_decrypt(data: bytes, key: bytes, iv: bytes, offset: int) -> bytes:
replace = int.to_bytes(offset // 16, 4, "big")
iv = iv[:-4] + replace
if is_fast:
return tgcrypto.ctr_decrypt(data, key, iv)
else:
ctr = pyaes.AESModeOfOperationCTR(key)
ctr._counter._counter = list(iv)
return ctr.decrypt(data)
@staticmethod
def xor(a: bytes, b: bytes) -> bytes:
@ -70,23 +52,3 @@ class AES:
len(a),
"big",
)
@classmethod
def ige(cls, data: bytes, key: bytes, iv: bytes, encrypt: bool) -> bytes:
cipher = pyaes.AES(key)
iv_1 = iv[:16]
iv_2 = iv[16:]
data = [data[i: i + 16] for i in range(0, len(data), 16)]
if encrypt:
for i, chunk in enumerate(data):
iv_1 = data[i] = cls.xor(cipher.encrypt(cls.xor(chunk, iv_1)), iv_2)
iv_2 = chunk
else:
for i, chunk in enumerate(data):
iv_2 = data[i] = cls.xor(cipher.decrypt(cls.xor(chunk, iv_2)), iv_1)
iv_1 = chunk
return b"".join(data)

View File

@ -72,7 +72,7 @@ setup(
"Topic :: Software Development :: Libraries :: Python Modules",
"Topic :: Software Development :: Libraries :: Application Frameworks"
],
keywords="telegram mtproto api client library python",
keywords="telegram chat messenger mtproto api client library python",
project_urls={
"Tracker": "https://github.com/pyrogram/pyrogram/issues",
"Community": "https://t.me/PyrogramChat",