本文整理汇总了Python中shadowsocks.common.is_ip函数的典型用法代码示例。如果您正苦于以下问题：Python is_ip函数的具体用法？Python is_ip怎么用？Python is_ip使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了is_ip函数的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: resolve
def resolve(self, hostname, callback):
if type(hostname) != bytes:
hostname = hostname.encode('utf8')
if not hostname:
callback(None, Exception('empty hostname'))
elif common.is_ip(hostname):
callback((hostname, hostname), None)
elif hostname in self._hosts:
logging.debug('hit hosts: %s', hostname)
ip = self._hosts[hostname]
callback((hostname, ip), None)
elif hostname in self._cache:
logging.debug('hit cache: %s', hostname)
ip = self._cache[hostname]
callback((hostname, ip), None)
else:
if not is_valid_hostname(hostname):
callback(None, Exception('invalid hostname: %s' % hostname))
return
arr = self._hostname_to_cb.get(hostname, None)
if not arr:
self._hostname_status[hostname] = STATUS_IPV4
self._send_req(hostname, QTYPE_A)
self._hostname_to_cb[hostname] = [callback]
self._cb_to_hostname[callback] = hostname
else:
arr.append(callback)
# TODO send again only if waited too long
self._send_req(hostname, QTYPE_A)示例2: _handle_server
def _handle_server(self):
server = self._server_socket
data, r_addr = server.recvfrom(BUF_SIZE)
ogn_data = data
if not data:
logging.debug('UDP handle_server: data is empty')
if self._stat_callback:
self._stat_callback(self._listen_port, len(data))
uid = None
if self._is_local:
frag = common.ord(data[2])
if frag != 0:
logging.warn('drop a message since frag is not 0')
return
else:
data = data[3:]
else:
ref_iv = [0]
data = encrypt.encrypt_all_iv(self._protocol.obfs.server_info.key, self._method, 0, data, ref_iv)
# decrypt data
if not data:
logging.debug('UDP handle_server: data is empty after decrypt')
return
self._protocol.obfs.server_info.recv_iv = ref_iv[0]
data, uid = self._protocol.server_udp_post_decrypt(data)
#logging.info("UDP data %s" % (binascii.hexlify(data),))
if not self._is_local:
data = pre_parse_header(data)
if data is None:
return
try:
header_result = parse_header(data)
except:
self._handel_protocol_error(r_addr, ogn_data)
return
if header_result is None:
self._handel_protocol_error(r_addr, ogn_data)
return
connecttype, addrtype, dest_addr, dest_port, header_length = header_result
if self._is_local:
addrtype = 3
server_addr, server_port = self._get_a_server()
else:
server_addr, server_port = dest_addr, dest_port
if (addrtype & 7) == 3:
af = common.is_ip(server_addr)
if af == False:
handler = common.UDPAsyncDNSHandler((data, r_addr, uid, header_length))
handler.resolve(self._dns_resolver, (server_addr, server_port), self._handle_server_dns_resolved)
else:
self._handle_server_dns_resolved("", (server_addr, server_port), server_addr, (data, r_addr, uid, header_length))
else:
self._handle_server_dns_resolved("", (server_addr, server_port), server_addr, (data, r_addr, uid, header_length))示例3: _parse_resolv
def _parse_resolv(self):
self._servers = []
try:
with open('dns.conf', 'rb') as f:
content = f.readlines()
for line in content:
line = line.strip()
if line:
parts = line.split(b' ', 1)
if len(parts) >= 2:
server = parts[0]
port = int(parts[1])
else:
server = parts[0]
port = 53
if common.is_ip(server) == socket.AF_INET:
if type(server) != str:
server = server.decode('utf8')
self._servers.append((server, port))
except IOError:
pass
if not self._servers:
try:
with open('/etc/resolv.conf', 'rb') as f:
content = f.readlines()
for line in content:
line = line.strip()
if line:
if line.startswith(b'nameserver'):
parts = line.split()
if len(parts) >= 2:
server = parts[1]
if common.is_ip(server) == socket.AF_INET:
if type(server) != str:
server = server.decode('utf8')
self._servers.append((server, 53))
except IOError:
pass
if not self._servers:
self._servers = [('8.8.4.4', 53), ('8.8.8.8', 53)]
logging.info('dns server: %s' % (self._servers,))示例4: resolve
def resolve(self, hostname, callback):
if type(hostname) != bytes:
hostname = hostname.encode('utf8')
if not hostname:
callback(None, Exception('empty hostname'))
elif common.is_ip(hostname):
callback((hostname, hostname), None)
elif hostname in self._hosts:
logging.debug('hit hosts: %s', hostname)
ip = self._hosts[hostname]
callback((hostname, ip), None)
elif hostname in self._cache:
logging.debug('hit cache: %s ==>> %s', hostname, self._cache[hostname])
ip = self._cache[hostname]
callback((hostname, ip), None)
elif any(hostname.endswith(t) for t in self._black_hostname_list):
callback(None, Exception('hostname <%s> is block by the black hostname list' % hostname))
return
else:
if not is_valid_hostname(hostname):
callback(None, Exception('invalid hostname: %s' % hostname))
return
if False:
addrs = socket.getaddrinfo(hostname, 0, 0,
socket.SOCK_DGRAM, socket.SOL_UDP)
if addrs:
af, socktype, proto, canonname, sa = addrs[0]
logging.debug('DNS resolve %s %s' % (hostname, sa[0]))
self._cache[hostname] = sa[0]
callback((hostname, sa[0]), None)
return
arr = self._hostname_to_cb.get(hostname, None)
if not arr:
if IPV6_CONNECTION_SUPPORT:
self._hostname_status[hostname] = STATUS_IPV6
self._send_req(hostname, QTYPE_AAAA)
else:
self._hostname_status[hostname] = STATUS_IPV4
self._send_req(hostname, QTYPE_A)
self._hostname_to_cb[hostname] = [callback]
self._cb_to_hostname[callback] = hostname
else:
arr.append(callback)
# TODO send again only if waited too long
if IPV6_CONNECTION_SUPPORT:
self._send_req(hostname, QTYPE_AAAA)
else:
self._send_req(hostname, QTYPE_A)示例5: resolve
def resolve(self, hostname, callback):
"""
域名解析函数
:param hostname: 待解析的hostname
:param callback: 解析完成之后执行的回调函数，参数为(result, error)
result: (hostname, ip)
error: exception
:return:
"""
# 不是以字符串形式则转化成字符串
if type(hostname) != bytes:
hostname = hostname.encode('utf8')
# 若hostname为空，抛出异常
if not hostname:
callback(None, Exception('empty hostname'))
# 若hostname为ip，直接使用
elif common.is_ip(hostname):
callback((hostname, hostname), None)
# 若hostname在host文件中，直接调用回调函数
elif hostname in self._hosts:
logging.debug('hit hosts: %s', hostname)
ip = self._hosts[hostname]
callback((hostname, ip), None)
# 若hostname在缓存中，直接调用回调函数
elif hostname in self._cache:
logging.debug('hit cache: %s', hostname)
ip = self._cache[hostname]
callback((hostname, ip), None)
# 都不满足，需要解析
else:
# 域名不合法
if not is_valid_hostname(hostname):
callback(None, Exception('invalid hostname: %s' % hostname))
return
# 获得解析该hostname对应的回调函数列表
arr = self._hostname_to_cb.get(hostname, None)
if not arr:
# 发出请求报文，同时记录该域名的一些相关信息
self._hostname_status[hostname] = STATUS_IPV4
self._send_req(hostname, QTYPE_A)
# 同时在_hostname_to_cb注册一个{hostname:[callback]}的一对
# 要hostname因为这个socket可以发出去很多不同hostname的解析请求
self._hostname_to_cb[hostname] = [callback]
self._cb_to_hostname[callback] = hostname
else:
arr.append(callback)
# TODO send again only if waited too long
self._send_req(hostname, QTYPE_A)示例6: resolve
def resolve(self, hostname, callback):
if type(hostname) != bytes:
hostname = hostname.encode('utf8')
# if hostname is None
if not hostname:
callback(None, Exception('empty hostname'))
# or hostname is already a ip
elif common.is_ip(hostname):
callback((hostname, hostname), None)
# or hostname is in hosts file
elif hostname in self._hosts:
logging.debug('hit hosts: %s', hostname)
ip = self._hosts[hostname]
callback((hostname, ip), None)
# or hostname is in cache
elif hostname in self._cache:
logging.debug('hit cache: %s', hostname)
ip = self._cache[hostname]
callback((hostname, ip), None)
# otherwise, resolve hostname
else:
# if hostname is invalid
if not is_valid_hostname(hostname):
callback(None, Exception('invalid hostname: %s' % hostname))
return
# arr is a list of callbacks
arr = self._hostname_to_cb.get(hostname, None)
# if hostname is not linked with any callbacks
# set default status, send request and link hostname with callback
if not arr:
self._hostname_status[hostname] = STATUS_IPV4
self._send_req(hostname, QTYPE_A)
self._hostname_to_cb[hostname] = [callback]
self._cb_to_hostname[callback] = hostname
# or just end request
else:
arr.append(callback) # meaningless
# TODO send again only if waited too long
self._send_req(hostname, QTYPE_A)示例7: _parse_hosts
def _parse_hosts(self):
etc_path = '/etc/hosts'
if 'WINDIR' in os.environ:
etc_path = os.environ['WINDIR'] + '/system32/drivers/etc/hosts'
try:
with open(etc_path, 'rb') as f:
for line in f.readlines():
line = line.strip()
parts = line.split()
if len(parts) >= 2:
ip = parts[0]
if common.is_ip(ip):
for i in range(1, len(parts)):
hostname = parts[i]
if hostname:
self._hosts[hostname] = ip
except IOError:
self._hosts['localhost'] = '127.0.0.1'示例8: _parse_hosts
def _parse_hosts(self):
etc_path = "/etc/hosts"
if "WINDIR" in os.environ:
etc_path = os.environ["WINDIR"] + "/system32/drivers/etc/hosts"
try:
with open(etc_path, "rb") as f:
for line in f.readlines():
line = line.strip()
parts = line.split()
if len(parts) >= 2:
ip = parts[0]
if common.is_ip(ip):
for i in range(1, len(parts)):
hostname = parts[i]
if hostname:
self._hosts[hostname] = ip
except IOError:
self._hosts["localhost"] = "127.0.0.1"示例9: _parse_resolv
def _parse_resolv(self):
self._servers = []
try:
with open('/etc/resolv.conf', 'rb') as f:
content = f.readlines()
for line in content:
line = line.strip()
if line:
if line.startswith(b'nameserver'):
parts = line.split()
if len(parts) >= 2:
server = parts[1]
if common.is_ip(server) == socket.AF_INET:
if type(server) != str:
server = server.decode('utf8')
self._servers.append(server)
except IOError:
pass
if not self._servers:
self._servers = ['8.8.4.4', '8.8.8.8']示例10: _parse_resolv
def _parse_resolv(self):
self._servers = []
try:
with open("/etc/resolv.conf", "rb") as f:
content = f.readlines()
for line in content:
line = line.strip()
if line:
if line.startswith(b"nameserver"):
parts = line.split()
if len(parts) >= 2:
server = parts[1]
if common.is_ip(server) == socket.AF_INET:
if type(server) != str:
server = server.decode("utf8")
self._servers.append(server)
except IOError:
pass
if not self._servers:
self._servers = ["8.8.4.4", "8.8.8.8"]