|  | @ -18,8 +18,6 @@ | 
			
		
	
		
		
			
				
					|  |  | from __future__ import absolute_import, division, print_function, \ |  |  | from __future__ import absolute_import, division, print_function, \ | 
			
		
	
		
		
			
				
					|  |  |     with_statement |  |  |     with_statement | 
			
		
	
		
		
			
				
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					|  |  | import os |  |  |  | 
			
		
	
		
		
			
				
					|  |  | import sys |  |  |  | 
			
		
	
		
		
			
				
					|  |  | import hashlib |  |  | import hashlib | 
			
		
	
		
		
			
				
					|  |  | import logging |  |  | import logging | 
			
		
	
		
		
			
				
					|  |  | import binascii |  |  | import binascii | 
			
		
	
	
		
		
			
				
					|  | @ -29,16 +27,16 @@ import datetime | 
			
		
	
		
		
			
				
					|  |  | import random |  |  | import random | 
			
		
	
		
		
			
				
					|  |  | import math |  |  | import math | 
			
		
	
		
		
			
				
					|  |  | import struct |  |  | import struct | 
			
		
	
		
		
			
				
					|  |  | import zlib |  |  |  | 
			
		
	
		
		
			
				
					|  |  | import hmac |  |  | import hmac | 
			
		
	
		
		
			
				
					|  |  | import hashlib |  |  |  | 
			
		
	
		
		
			
				
					|  |  | import bisect |  |  | import bisect | 
			
		
	
		
		
			
				
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					|  |  | import shadowsocks |  |  | import shadowsocks | 
			
		
	
		
		
			
				
					|  |  | from shadowsocks import common, lru_cache, encrypt |  |  | from shadowsocks import common, lru_cache, encrypt | 
			
		
	
		
		
			
				
					|  |  | from shadowsocks.obfsplugin import plain |  |  | from shadowsocks.obfsplugin import plain | 
			
		
	
		
		
			
				
					|  |  | from shadowsocks.common import to_bytes, to_str, ord, chr |  |  | from shadowsocks.common import to_bytes, to_str, ord, chr | 
			
		
	
		
		
			
				
					|  |  |  |  |  | from shadowsocks.crypto import openssl | 
			
		
	
		
		
			
				
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					|  |  |  |  |  | rand_bytes = openssl.rand_bytes | 
			
		
	
		
		
			
				
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					|  |  | def create_auth_chain_a(method): |  |  | def create_auth_chain_a(method): | 
			
		
	
		
		
			
				
					|  |  |     return auth_chain_a(method) |  |  |     return auth_chain_a(method) | 
			
		
	
	
		
		
			
				
					|  | @ -87,25 +85,25 @@ class xorshift128plus(object): | 
			
		
	
		
		
			
				
					|  |  |         y = self.v1 |  |  |         y = self.v1 | 
			
		
	
		
		
			
				
					|  |  |         self.v0 = y |  |  |         self.v0 = y | 
			
		
	
		
		
			
				
					|  |  |         x ^= ((x & xorshift128plus.mov_mask) << 23) |  |  |         x ^= ((x & xorshift128plus.mov_mask) << 23) | 
			
		
	
		
		
			
				
					
					|  |  |         x ^= (y ^ (x >> 17) ^ (y >> 26)) & xorshift128plus.max_int |  |  |         x ^= (y ^ (x >> 17) ^ (y >> 26)) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         self.v1 = x |  |  |         self.v1 = x | 
			
		
	
		
		
			
				
					|  |  |         return (x + y) & xorshift128plus.max_int |  |  |         return (x + y) & xorshift128plus.max_int | 
			
		
	
		
		
			
				
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					|  |  |     def init_from_bin(self, bin): |  |  |     def init_from_bin(self, bin): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         if len(bin) < 16: | 
			
		
	
		
		
			
				
					|  |  |             bin += b'\0' * 16 |  |  |             bin += b'\0' * 16 | 
			
		
	
		
		
			
				
					|  |  |         self.v0 = struct.unpack('<Q', bin[:8])[0] |  |  |         self.v0 = struct.unpack('<Q', bin[:8])[0] | 
			
		
	
		
		
			
				
					|  |  |         self.v1 = struct.unpack('<Q', bin[8:16])[0] |  |  |         self.v1 = struct.unpack('<Q', bin[8:16])[0] | 
			
		
	
		
		
			
				
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					|  |  |     def init_from_bin_len(self, bin, length): |  |  |     def init_from_bin_len(self, bin, length): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         if len(bin) < 16: | 
			
		
	
		
		
			
				
					|  |  |             bin += b'\0' * 16 |  |  |             bin += b'\0' * 16 | 
			
		
	
		
		
			
				
					
					|  |  |         bin = struct.pack('<H', length) + bin[2:] |  |  |         self.v0 = struct.unpack('<Q', struct.pack('<H', length) + bin[2:8])[0] | 
			
				
				
			
		
	
		
		
			
				
					|  |  |         self.v0 = struct.unpack('<Q', bin[:8])[0] |  |  |  | 
			
		
	
		
		
	
		
		
			
				
					|  |  |         self.v1 = struct.unpack('<Q', bin[8:16])[0] |  |  |         self.v1 = struct.unpack('<Q', bin[8:16])[0] | 
			
		
	
		
		
			
				
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					|  |  |         for i in range(4): |  |  |         for i in range(4): | 
			
		
	
		
		
			
				
					|  |  |             self.next() |  |  |             self.next() | 
			
		
	
		
		
			
				
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					|  |  | def match_begin(str1, str2): |  |  | def match_begin(str1, str2): | 
			
		
	
		
		
			
				
					|  |  |     if len(str1) >= len(str2): |  |  |     if len(str1) >= len(str2): | 
			
		
	
		
		
			
				
					|  |  |         if str1[:len(str2)] == str2: |  |  |         if str1[:len(str2)] == str2: | 
			
		
	
	
		
		
			
				
					|  | @ -335,7 +333,7 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |     def rnd_data(self, buf_size, buf, last_hash, random): |  |  |     def rnd_data(self, buf_size, buf, last_hash, random): | 
			
		
	
		
		
			
				
					|  |  |         rand_len = self.rnd_data_len(buf_size, last_hash, random) |  |  |         rand_len = self.rnd_data_len(buf_size, last_hash, random) | 
			
		
	
		
		
			
				
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					|  |  |         rnd_data_buf = os.urandom(rand_len) |  |  |         rnd_data_buf = rand_bytes(rand_len) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
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					|  |  |         if buf_size == 0: |  |  |         if buf_size == 0: | 
			
		
	
		
		
			
				
					|  |  |             return rnd_data_buf |  |  |             return rnd_data_buf | 
			
		
	
	
		
		
			
				
					|  | @ -349,7 +347,6 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |     def pack_client_data(self, buf): |  |  |     def pack_client_data(self, buf): | 
			
		
	
		
		
			
				
					|  |  |         buf = self.encryptor.encrypt(buf) |  |  |         buf = self.encryptor.encrypt(buf) | 
			
		
	
		
		
			
				
					|  |  |         data = self.rnd_data(len(buf), buf, self.last_client_hash, self.random_client) |  |  |         data = self.rnd_data(len(buf), buf, self.last_client_hash, self.random_client) | 
			
		
	
		
		
			
				
					|  |  |         data_len = len(data) + 8 |  |  |  | 
			
		
	
		
		
			
				
					|  |  |         mac_key = self.user_key + struct.pack('<I', self.pack_id) |  |  |         mac_key = self.user_key + struct.pack('<I', self.pack_id) | 
			
		
	
		
		
			
				
					|  |  |         length = len(buf) ^ struct.unpack('<H', self.last_client_hash[14:])[0] |  |  |         length = len(buf) ^ struct.unpack('<H', self.last_client_hash[14:])[0] | 
			
		
	
		
		
			
				
					|  |  |         data = struct.pack('<H', length) + data |  |  |         data = struct.pack('<H', length) + data | 
			
		
	
	
		
		
			
				
					|  | @ -361,7 +358,6 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |     def pack_server_data(self, buf): |  |  |     def pack_server_data(self, buf): | 
			
		
	
		
		
			
				
					|  |  |         buf = self.encryptor.encrypt(buf) |  |  |         buf = self.encryptor.encrypt(buf) | 
			
		
	
		
		
			
				
					|  |  |         data = self.rnd_data(len(buf), buf, self.last_server_hash, self.random_server) |  |  |         data = self.rnd_data(len(buf), buf, self.last_server_hash, self.random_server) | 
			
		
	
		
		
			
				
					|  |  |         data_len = len(data) + 8 |  |  |  | 
			
		
	
		
		
			
				
					|  |  |         mac_key = self.user_key + struct.pack('<I', self.pack_id) |  |  |         mac_key = self.user_key + struct.pack('<I', self.pack_id) | 
			
		
	
		
		
			
				
					|  |  |         length = len(buf) ^ struct.unpack('<H', self.last_server_hash[14:])[0] |  |  |         length = len(buf) ^ struct.unpack('<H', self.last_server_hash[14:])[0] | 
			
		
	
		
		
			
				
					|  |  |         data = struct.pack('<H', length) + data |  |  |         data = struct.pack('<H', length) + data | 
			
		
	
	
		
		
			
				
					|  | @ -372,11 +368,10 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
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					|  |  |     def pack_auth_data(self, auth_data, buf): |  |  |     def pack_auth_data(self, auth_data, buf): | 
			
		
	
		
		
			
				
					|  |  |         data = auth_data |  |  |         data = auth_data | 
			
		
	
		
		
			
				
					|  |  |         data_len = 12 + 4 + 16 + 4 |  |  |  | 
			
		
	
		
		
			
				
					|  |  |         data = data + (struct.pack('<H', self.server_info.overhead) + struct.pack('<H', 0)) |  |  |         data = data + (struct.pack('<H', self.server_info.overhead) + struct.pack('<H', 0)) | 
			
		
	
		
		
			
				
					|  |  |         mac_key = self.server_info.iv + self.server_info.key |  |  |         mac_key = self.server_info.iv + self.server_info.key | 
			
		
	
		
		
			
				
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					|  |  |         check_head = os.urandom(4) |  |  |         check_head = rand_bytes(4) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         self.last_client_hash = hmac.new(mac_key, check_head, self.hashfunc).digest() |  |  |         self.last_client_hash = hmac.new(mac_key, check_head, self.hashfunc).digest() | 
			
		
	
		
		
			
				
					|  |  |         check_head += self.last_client_hash[:8] |  |  |         check_head += self.last_client_hash[:8] | 
			
		
	
		
		
			
				
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					|  | @ -386,9 +381,9 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |                 self.user_key = items[1] |  |  |                 self.user_key = items[1] | 
			
		
	
		
		
			
				
					|  |  |                 uid = struct.pack('<I', int(items[0])) |  |  |                 uid = struct.pack('<I', int(items[0])) | 
			
		
	
		
		
			
				
					|  |  |             except: |  |  |             except: | 
			
		
	
		
		
			
				
					
					|  |  |                 uid = os.urandom(4) |  |  |                 uid = rand_bytes(4) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         else: |  |  |         else: | 
			
		
	
		
		
			
				
					
					|  |  |             uid = os.urandom(4) |  |  |             uid = rand_bytes(4) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         if self.user_key is None: |  |  |         if self.user_key is None: | 
			
		
	
		
		
			
				
					|  |  |             self.user_key = self.server_info.key |  |  |             self.user_key = self.server_info.key | 
			
		
	
		
		
			
				
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					|  | @ -409,14 +404,17 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |         if self.server_info.data.connection_id > 0xFF000000: |  |  |         if self.server_info.data.connection_id > 0xFF000000: | 
			
		
	
		
		
			
				
					|  |  |             self.server_info.data.local_client_id = b'' |  |  |             self.server_info.data.local_client_id = b'' | 
			
		
	
		
		
			
				
					|  |  |         if not self.server_info.data.local_client_id: |  |  |         if not self.server_info.data.local_client_id: | 
			
		
	
		
		
			
				
					
					|  |  |             self.server_info.data.local_client_id = os.urandom(4) |  |  |             self.server_info.data.local_client_id = rand_bytes(4) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |             logging.debug("local_client_id %s" % (binascii.hexlify(self.server_info.data.local_client_id),)) |  |  |             logging.debug("local_client_id %s" % (binascii.hexlify(self.server_info.data.local_client_id),)) | 
			
		
	
		
		
			
				
					
					|  |  |             self.server_info.data.connection_id = struct.unpack('<I', os.urandom(4))[0] & 0xFFFFFF |  |  |             self.server_info.data.connection_id = struct.unpack('<I', rand_bytes(4))[0] & 0xFFFFFF | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         self.server_info.data.connection_id += 1 |  |  |         self.server_info.data.connection_id += 1 | 
			
		
	
		
		
			
				
					|  |  |         return b''.join([struct.pack('<I', utc_time), |  |  |         return b''.join([struct.pack('<I', utc_time), | 
			
		
	
		
		
			
				
					|  |  |                          self.server_info.data.local_client_id, |  |  |                          self.server_info.data.local_client_id, | 
			
		
	
		
		
			
				
					|  |  |                          struct.pack('<I', self.server_info.data.connection_id)]) |  |  |                          struct.pack('<I', self.server_info.data.connection_id)]) | 
			
		
	
		
		
			
				
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					|  |  |  |  |  |     def on_recv_auth_data(self, utc_time): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         pass | 
			
		
	
		
		
			
				
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					|  |  |     def client_pre_encrypt(self, buf): |  |  |     def client_pre_encrypt(self, buf): | 
			
		
	
		
		
			
				
					|  |  |         ret = b'' |  |  |         ret = b'' | 
			
		
	
		
		
			
				
					|  |  |         ogn_data_len = len(buf) |  |  |         ogn_data_len = len(buf) | 
			
		
	
	
		
		
			
				
					|  | @ -551,6 +549,7 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |                 logging.info('%s: auth fail, data %s' % (self.no_compatible_method, binascii.hexlify(out_buf))) |  |  |                 logging.info('%s: auth fail, data %s' % (self.no_compatible_method, binascii.hexlify(out_buf))) | 
			
		
	
		
		
			
				
					|  |  |                 return self.not_match_return(self.recv_buf) |  |  |                 return self.not_match_return(self.recv_buf) | 
			
		
	
		
		
			
				
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					|  |  |  |  |  |             self.on_recv_auth_data(utc_time) | 
			
		
	
		
		
			
				
					|  |  |             self.encryptor = encrypt.Encryptor( |  |  |             self.encryptor = encrypt.Encryptor( | 
			
		
	
		
		
			
				
					|  |  |                 to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(self.last_client_hash)), 'rc4') |  |  |                 to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(self.last_client_hash)), 'rc4') | 
			
		
	
		
		
			
				
					|  |  |             self.recv_buf = self.recv_buf[36:] |  |  |             self.recv_buf = self.recv_buf[36:] | 
			
		
	
	
		
		
			
				
					|  | @ -565,7 +564,7 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |             if length >= 4096: |  |  |             if length >= 4096: | 
			
		
	
		
		
			
				
					|  |  |                 self.raw_trans = True |  |  |                 self.raw_trans = True | 
			
		
	
		
		
			
				
					|  |  |                 self.recv_buf = b'' |  |  |                 self.recv_buf = b'' | 
			
		
	
		
		
			
				
					
					|  |  |                 if self.recv_id == 0: |  |  |                 if self.recv_id == 1: | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |                     logging.info(self.no_compatible_method + ': over size') |  |  |                     logging.info(self.no_compatible_method + ': over size') | 
			
		
	
		
		
			
				
					|  |  |                     return (b'E' * 2048, False) |  |  |                     return (b'E' * 2048, False) | 
			
		
	
		
		
			
				
					|  |  |                 else: |  |  |                 else: | 
			
		
	
	
		
		
			
				
					|  | @ -581,7 +580,7 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |                 )) |  |  |                 )) | 
			
		
	
		
		
			
				
					|  |  |                 self.raw_trans = True |  |  |                 self.raw_trans = True | 
			
		
	
		
		
			
				
					|  |  |                 self.recv_buf = b'' |  |  |                 self.recv_buf = b'' | 
			
		
	
		
		
			
				
					
					|  |  |                 if self.recv_id == 0: |  |  |                 if self.recv_id == 1: | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |                     return (b'E' * 2048, False) |  |  |                     return (b'E' * 2048, False) | 
			
		
	
		
		
			
				
					|  |  |                 else: |  |  |                 else: | 
			
		
	
		
		
			
				
					|  |  |                     raise Exception('server_post_decrype data uncorrect checksum') |  |  |                     raise Exception('server_post_decrype data uncorrect checksum') | 
			
		
	
	
		
		
			
				
					|  | @ -610,9 +609,9 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |                 except: |  |  |                 except: | 
			
		
	
		
		
			
				
					|  |  |                     pass |  |  |                     pass | 
			
		
	
		
		
			
				
					|  |  |             if self.user_key is None: |  |  |             if self.user_key is None: | 
			
		
	
		
		
			
				
					
					|  |  |                 self.user_id = os.urandom(4) |  |  |                 self.user_id = rand_bytes(4) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |                 self.user_key = self.server_info.key |  |  |                 self.user_key = self.server_info.key | 
			
		
	
		
		
			
				
					
					|  |  |         authdata = os.urandom(3) |  |  |         authdata = rand_bytes(3) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         mac_key = self.server_info.key |  |  |         mac_key = self.server_info.key | 
			
		
	
		
		
			
				
					|  |  |         md5data = hmac.new(mac_key, authdata, self.hashfunc).digest() |  |  |         md5data = hmac.new(mac_key, authdata, self.hashfunc).digest() | 
			
		
	
		
		
			
				
					|  |  |         uid = struct.unpack('<I', self.user_id)[0] ^ struct.unpack('<I', md5data[:4])[0] |  |  |         uid = struct.unpack('<I', self.user_id)[0] ^ struct.unpack('<I', md5data[:4])[0] | 
			
		
	
	
		
		
			
				
					|  | @ -621,7 +620,7 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |         encryptor = encrypt.Encryptor( |  |  |         encryptor = encrypt.Encryptor( | 
			
		
	
		
		
			
				
					|  |  |             to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4') |  |  |             to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4') | 
			
		
	
		
		
			
				
					|  |  |         out_buf = encryptor.encrypt(buf) |  |  |         out_buf = encryptor.encrypt(buf) | 
			
		
	
		
		
			
				
					
					|  |  |         buf = out_buf + os.urandom(rand_len) + authdata + uid |  |  |         buf = out_buf + rand_bytes(rand_len) + authdata + uid | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         return buf + hmac.new(self.user_key, buf, self.hashfunc).digest()[:1] |  |  |         return buf + hmac.new(self.user_key, buf, self.hashfunc).digest()[:1] | 
			
		
	
		
		
			
				
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					|  |  |     def client_udp_post_decrypt(self, buf): |  |  |     def client_udp_post_decrypt(self, buf): | 
			
		
	
	
		
		
			
				
					|  | @ -645,13 +644,13 @@ class auth_chain_a(auth_base): | 
			
		
	
		
		
			
				
					|  |  |                 user_key = self.server_info.key |  |  |                 user_key = self.server_info.key | 
			
		
	
		
		
			
				
					|  |  |             else: |  |  |             else: | 
			
		
	
		
		
			
				
					|  |  |                 user_key = self.server_info.recv_iv |  |  |                 user_key = self.server_info.recv_iv | 
			
		
	
		
		
			
				
					
					|  |  |         authdata = os.urandom(7) |  |  |         authdata = rand_bytes(7) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         mac_key = self.server_info.key |  |  |         mac_key = self.server_info.key | 
			
		
	
		
		
			
				
					|  |  |         md5data = hmac.new(mac_key, authdata, self.hashfunc).digest() |  |  |         md5data = hmac.new(mac_key, authdata, self.hashfunc).digest() | 
			
		
	
		
		
			
				
					|  |  |         rand_len = self.udp_rnd_data_len(md5data, self.random_server) |  |  |         rand_len = self.udp_rnd_data_len(md5data, self.random_server) | 
			
		
	
		
		
			
				
					|  |  |         encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4') |  |  |         encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4') | 
			
		
	
		
		
			
				
					|  |  |         out_buf = encryptor.encrypt(buf) |  |  |         out_buf = encryptor.encrypt(buf) | 
			
		
	
		
		
			
				
					
					|  |  |         buf = out_buf + os.urandom(rand_len) + authdata |  |  |         buf = out_buf + rand_bytes(rand_len) + authdata | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |         return buf + hmac.new(user_key, buf, self.hashfunc).digest()[:1] |  |  |         return buf + hmac.new(user_key, buf, self.hashfunc).digest()[:1] | 
			
		
	
		
		
			
				
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					|  |  |     def server_udp_post_decrypt(self, buf): |  |  |     def server_udp_post_decrypt(self, buf): | 
			
		
	
	
		
		
			
				
					|  | @ -855,6 +854,7 @@ class auth_chain_e(auth_chain_d): | 
			
		
	
		
		
			
				
					|  |  |         self.no_compatible_method = 'auth_chain_e' |  |  |         self.no_compatible_method = 'auth_chain_e' | 
			
		
	
		
		
			
				
					|  |  | 
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					|  |  |     def rnd_data_len(self, buf_size, last_hash, random): |  |  |     def rnd_data_len(self, buf_size, last_hash, random): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         random.init_from_bin_len(last_hash, buf_size) | 
			
		
	
		
		
			
				
					|  |  |         other_data_size = buf_size + self.server_info.overhead |  |  |         other_data_size = buf_size + self.server_info.overhead | 
			
		
	
		
		
			
				
					|  |  |         # if other_data_size > the bigest item in data_size_list0, not padding any data |  |  |         # if other_data_size > the bigest item in data_size_list0, not padding any data | 
			
		
	
		
		
			
				
					|  |  |         if other_data_size >= self.data_size_list0[-1]: |  |  |         if other_data_size >= self.data_size_list0[-1]: | 
			
		
	
	
		
		
			
				
					|  | @ -879,15 +879,17 @@ class auth_chain_f(auth_chain_e): | 
			
		
	
		
		
			
				
					|  |  |             max_client = int(server_info.protocol_param.split('#')[0]) |  |  |             max_client = int(server_info.protocol_param.split('#')[0]) | 
			
		
	
		
		
			
				
					|  |  |         except: |  |  |         except: | 
			
		
	
		
		
			
				
					|  |  |             max_client = 64 |  |  |             max_client = 64 | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         self.server_info.data.set_max_client(max_client) | 
			
		
	
		
		
			
				
					|  |  |         try: |  |  |         try: | 
			
		
	
		
		
			
				
					|  |  |             self.key_change_interval = int(server_info.protocol_param.split('#')[1])  # config are in second |  |  |             self.key_change_interval = int(server_info.protocol_param.split('#')[1])  # config are in second | 
			
		
	
		
		
			
				
					|  |  |         except: |  |  |         except: | 
			
		
	
		
		
			
				
					|  |  |             self.key_change_interval = 60 * 60 * 24  # a day by second |  |  |             self.key_change_interval = 60 * 60 * 24  # a day by second | 
			
		
	
		
		
			
				
					
					|  |  |         self.key_change_datetime_key = int(int(time.time()) / self.key_change_interval) |  |  | 
 | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |  |  |  |     def on_recv_auth_data(self, utc_time): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         self.key_change_datetime_key = int(utc_time / self.key_change_interval) | 
			
		
	
		
		
			
				
					|  |  |         self.key_change_datetime_key_bytes = []  # big bit first list |  |  |         self.key_change_datetime_key_bytes = []  # big bit first list | 
			
		
	
		
		
			
				
					|  |  |         for i in range(7, -1, -1):  # big-ending compare to c |  |  |         for i in range(7, -1, -1):  # big-ending compare to c | 
			
		
	
		
		
			
				
					|  |  |             self.key_change_datetime_key_bytes.append((self.key_change_datetime_key >> (8 * i)) & 0xFF) |  |  |             self.key_change_datetime_key_bytes.append((self.key_change_datetime_key >> (8 * i)) & 0xFF) | 
			
		
	
		
		
			
				
					|  |  |         self.server_info.data.set_max_client(max_client) |  |  |  | 
			
		
	
		
		
			
				
					|  |  |         self.init_data_size(self.server_info.key) |  |  |         self.init_data_size(self.server_info.key) | 
			
		
	
		
		
			
				
					|  |  | 
 |  |  | 
 | 
			
		
	
		
		
			
				
					|  |  |     def init_data_size(self, key): |  |  |     def init_data_size(self, key): | 
			
		
	
	
		
		
			
				
					|  | @ -896,9 +898,13 @@ class auth_chain_f(auth_chain_e): | 
			
		
	
		
		
			
				
					|  |  |         random = xorshift128plus() |  |  |         random = xorshift128plus() | 
			
		
	
		
		
			
				
					|  |  |         # key xor with key_change_datetime_key |  |  |         # key xor with key_change_datetime_key | 
			
		
	
		
		
			
				
					|  |  |         new_key = bytearray(key) |  |  |         new_key = bytearray(key) | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         new_key_str = '' | 
			
		
	
		
		
			
				
					|  |  |         for i in range(0, 8): |  |  |         for i in range(0, 8): | 
			
		
	
		
		
			
				
					|  |  |             new_key[i] ^= self.key_change_datetime_key_bytes[i] |  |  |             new_key[i] ^= self.key_change_datetime_key_bytes[i] | 
			
		
	
		
		
			
				
					
					|  |  |         random.init_from_bin(new_key) |  |  |             new_key_str += chr(new_key[i]) | 
			
				
				
			
		
	
		
		
	
		
		
			
				
					|  |  |  |  |  |         for i in range(8, len(new_key)): | 
			
		
	
		
		
			
				
					|  |  |  |  |  |             new_key_str += chr(new_key[i]) | 
			
		
	
		
		
			
				
					|  |  |  |  |  |         random.init_from_bin(to_bytes(new_key_str)) | 
			
		
	
		
		
			
				
					|  |  |         # 补全数组长为12~24-1 |  |  |         # 补全数组长为12~24-1 | 
			
		
	
		
		
			
				
					|  |  |         list_len = random.next() % (8 + 16) + (4 + 8) |  |  |         list_len = random.next() % (8 + 16) + (4 + 8) | 
			
		
	
		
		
			
				
					|  |  |         for i in range(0, list_len): |  |  |         for i in range(0, list_len): | 
			
		
	
	
		
		
			
				
					|  | 
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