python类gethostbyname()的实例源码

def get_host_ip(hostname, fallback=None):
    """
    Resolves the IP for a given hostname, or returns
    the input if it is already an IP.
    """
    if is_ip(hostname):
        return hostname

    ip_addr = ns_query(hostname)
    if not ip_addr:
        try:
            ip_addr = socket.gethostbyname(hostname)
        except:
            log("Failed to resolve hostname '%s'" % (hostname),
                level=WARNING)
            return fallback
    return ip_addr

def setOSCTarget(self, address, prefix=None, filters=None):
        """Add (i.e. subscribe) a new OSCTarget, or change the prefix for an existing OSCTarget.
          the 'address' argument can be a ((host, port) tuple) : The target server address & UDP-port
            or a 'host' (string) : The host will be looked-up 
          - prefix (string): The OSC-address prefix prepended to the address of each OSCMessage
          sent to this OSCTarget (optional)
        """
        if type(address) in str:
            address = self._searchHostAddr(address)

        elif (type(address) == tuple):
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except:
                pass

            address = (host, port)
        else:
            raise TypeError("'address' argument must be a (host, port) tuple or a 'host' string")

        self._setTarget(address, prefix, filters)

def delOSCTarget(self, address, prefix=None):
        """Delete the specified OSCTarget from the Client's dict.
        the 'address' argument can be a ((host, port) tuple), or a hostname.
        If the 'prefix' argument is given, the Target is only deleted if the address and prefix match.
        """
        if type(address) in str:
            address = self._searchHostAddr(address) 

        if type(address) == tuple:
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            self._delTarget(address, prefix)

def hasOSCTarget(self, address, prefix=None):
        """Return True if the given OSCTarget exists in the Client's dict.
        the 'address' argument can be a ((host, port) tuple), or a hostname.
        If the 'prefix' argument is given, the return-value is only True if the address and prefix match.
        """
        if type(address) in str:
            address = self._searchHostAddr(address) 

        if type(address) == tuple:
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            if address in list(self.targets.keys()):
                if prefix == None:
                    return True
                elif prefix == self.targets[address][0]:
                    return True

        return False

def getOSCTarget(self, address):
        """Returns the OSCTarget matching the given address as a ((host, port), [prefix, filters]) tuple.
        'address' can be a (host, port) tuple, or a 'host' (string), in which case the first matching OSCTarget is returned
        Returns (None, ['',{}]) if address not found.
        """
        if type(address) in str:
            address = self._searchHostAddr(address) 

        if (type(address) == tuple): 
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            if (address in list(self.targets.keys())):
                try:
                    (host, _, _) = socket.gethostbyaddr(host)
                except socket.error:
                    pass

                return ((host, port), self.targets[address])

        return (None, ['',{}])

def setOSCTarget(self, address, prefix=None, filters=None):
        """Add (i.e. subscribe) a new OSCTarget, or change the prefix for an existing OSCTarget.
          the 'address' argument can be a ((host, port) tuple) : The target server address & UDP-port
            or a 'host' (string) : The host will be looked-up 
          - prefix (string): The OSC-address prefix prepended to the address of each OSCMessage
          sent to this OSCTarget (optional)
        """
        if type(address) in types.StringTypes:
            address = self._searchHostAddr(address)

        elif (type(address) == types.TupleType):
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except:
                pass

            address = (host, port)
        else:
            raise TypeError("'address' argument must be a (host, port) tuple or a 'host' string")

        self._setTarget(address, prefix, filters)

def delOSCTarget(self, address, prefix=None):
        """Delete the specified OSCTarget from the Client's dict.
        the 'address' argument can be a ((host, port) tuple), or a hostname.
        If the 'prefix' argument is given, the Target is only deleted if the address and prefix match.
        """
        if type(address) in types.StringTypes:
            address = self._searchHostAddr(address) 

        if type(address) == types.TupleType:
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            self._delTarget(address, prefix)

def hasOSCTarget(self, address, prefix=None):
        """Return True if the given OSCTarget exists in the Client's dict.
        the 'address' argument can be a ((host, port) tuple), or a hostname.
        If the 'prefix' argument is given, the return-value is only True if the address and prefix match.
        """
        if type(address) in types.StringTypes:
            address = self._searchHostAddr(address) 

        if type(address) == types.TupleType:
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            if address in self.targets.keys():
                if prefix == None:
                    return True
                elif prefix == self.targets[address][0]:
                    return True

        return False

def getOSCTarget(self, address):
        """Returns the OSCTarget matching the given address as a ((host, port), [prefix, filters]) tuple.
        'address' can be a (host, port) tuple, or a 'host' (string), in which case the first matching OSCTarget is returned
        Returns (None, ['',{}]) if address not found.
        """
        if type(address) in types.StringTypes:
            address = self._searchHostAddr(address) 

        if (type(address) == types.TupleType): 
            (host, port) = address[:2]
            try:
                host = socket.gethostbyname(host)
            except socket.error:
                pass
            address = (host, port)

            if (address in self.targets.keys()):
                try:
                    (host, _, _) = socket.gethostbyaddr(host)
                except socket.error:
                    pass

                return ((host, port), self.targets[address])

        return (None, ['',{}])

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def output(data, udp):
    """
    output the sensor backlog data, in JSON format
    always output to stdout
    output to udp if so specified
    """
    print data

    if udp is None:
        return

    try:
        sockaddr_components = udp.split(':')
        ip = socket.gethostbyname(sockaddr_components[0])
        port = int(sockaddr_components[1])
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
        sock.sendto(data + '\n', (ip, port))
    except Exception, e:
        print e

    return

def output(data, udp):
    """
    output the sensor backlog data, in JSON format
    always output to stdout
    output to udp if so specified
    """
    print data

    if udp is None:
        return

    try:
        sockaddr_components = udp.split(':')
        ip = socket.gethostbyname(sockaddr_components[0])
        port = int(sockaddr_components[1])
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
        sock.sendto(data + '\n', (ip, port))
    except Exception, e:
        print e

    return

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        host = _ipv6_host(host).lower()

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def getStreamDef( self, name=None, hostip=None, pkts=1000, block=True, returnSddsAnalyzer=True):
        # grab data if stream definition is available 
        sdef =None
        aid=name
        if not aid:
            if len(self._streamdefs) ==  0:
                raise Exception("No attachment have been made, use grabData or call attach")

            aid = self._streamdefs.keys()[0]
            print "Defaults to first entry, attach id = ", aid
            sdef = self._streamdefs[aid]
        else:
            sdef = sefl._streamdefs[aid]

        if not sdef:
            raise Exception("No SDDS stream definition for attach id:" + aid )

        if not hostip:
            hostip = _socket.gethostbyname(_socket.gethostname())

        return self.getData( sdef.multicastAddress, hostip, sdef.port, packets, block=block, returnSDDSAnalyzer=returnSDDSAnalyzer)

def get_host_ip(hostname, fallback=None):
    """
    Resolves the IP for a given hostname, or returns
    the input if it is already an IP.
    """
    if is_ip(hostname):
        return hostname

    ip_addr = ns_query(hostname)
    if not ip_addr:
        try:
            ip_addr = socket.gethostbyname(hostname)
        except Exception:
            log("Failed to resolve hostname '%s'" % (hostname),
                level=WARNING)
            return fallback
    return ip_addr

def get_host_ip(hostname, fallback=None):
    """
    Resolves the IP for a given hostname, or returns
    the input if it is already an IP.
    """
    if is_ip(hostname):
        return hostname

    ip_addr = ns_query(hostname)
    if not ip_addr:
        try:
            ip_addr = socket.gethostbyname(hostname)
        except Exception:
            log("Failed to resolve hostname '%s'" % (hostname),
                level=WARNING)
            return fallback
    return ip_addr

def choose_boundary():
    global _prefix

    if _prefix is None:
        hostid = socket.gethostbyname(socket.gethostname())

        try:
            uid = `os.getuid()`
        except:
            uid = '1'
        try:
            pid = `os.getpid()`
        except:
            pid = '1'

        _prefix = hostid + '.' + uid + '.' + pid

    timestamp = '%.3f' % time.time()
    seed = `random.randint(0, 32767)`
    return _prefix + '.' + timestamp + '.' + seed

def choose_boundary():
    """Return a string usable as a multipart boundary.

    The string chosen is unique within a single program run, and
    incorporates the user id (if available), process id (if available),
    and current time.  So it's very unlikely the returned string appears
    in message text, but there's no guarantee.

    The boundary contains dots so you have to quote it in the header."""

    global _prefix
    import time
    if _prefix is None:
        import socket
        try:
            hostid = socket.gethostbyname(socket.gethostname())
        except socket.gaierror:
            hostid = '127.0.0.1'
        try:
            uid = repr(os.getuid())
        except AttributeError:
            uid = '1'
        try:
            pid = repr(os.getpid())
        except AttributeError:
            pid = '1'
        _prefix = hostid + '.' + uid + '.' + pid
    return "%s.%.3f.%d" % (_prefix, time.time(), _get_next_counter())


# Subroutines for decoding some common content-transfer-types

def output(data, udp):
    """
    output the sensor backlog data, in JSON format
    always output to stdout
    output to udp if so specified
    """
    print data

    if udp is None:
        return

    try:
        sockaddr_components = udp.split(':')
        ip = socket.gethostbyname(sockaddr_components[0])
        port = int(sockaddr_components[1])
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
        sock.sendto(data + '\n', (ip, port))
    except Exception, e:
        print e

    return

def output(data, udp):
    """
    output the sensor backlog data, in JSON format
    always output to stdout
    output to udp if so specified
    """
    print data

    if udp is None:
        return

    try:
        sockaddr_components = udp.split(':')
        ip = socket.gethostbyname(sockaddr_components[0])
        port = int(sockaddr_components[1])
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
        sock.sendto(data + '\n', (ip, port))
    except Exception, e:
        print e

    return

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        host = _ipv6_host(host).lower()

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def attack():

    ip = socket.gethostbyname( host )
    global n
    msg=str(string.letters+string.digits+string.punctuation)
    data="".join(random.sample(msg,5))
    dos = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    try:
        n+=1
        dos.connect((ip, port))
        dos.send( "GET /%s HTTP/1.1\r\n" % data )
        print "\n "+time.ctime().split(" ")[3]+" "+"["+str(n)+"] #-#-# Hold Your Tears #-#-#"

    except socket.error:
        print "\n [ No connection! Server maybe down ] "

    dos.close()

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        host = _ipv6_host(host).lower()

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        host = _ipv6_host(host).lower()

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def is_same_host(self, url):
        """
        Check if the given ``url`` is a member of the same host as this
        connection pool.
        """
        if url.startswith('/'):
            return True

        # TODO: Add optional support for socket.gethostbyname checking.
        scheme, host, port = get_host(url)

        # Use explicit default port for comparison when none is given
        if self.port and not port:
            port = port_by_scheme.get(scheme)
        elif not self.port and port == port_by_scheme.get(scheme):
            port = None

        return (scheme, host, port) == (self.scheme, self.host, self.port)

def getipaddr(self, ifname='eth0'):
        import socket
        import struct
        ret = '127.0.0.1'
        try:
            ret = socket.gethostbyname(socket.getfqdn(socket.gethostname()))
        except:
            pass
        if ret == '127.0.0.1':
            try:
                import fcntl
                s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
                ret = socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s', ifname[:15]))[20:24])
            except:
                pass
        return ret

def get_host_ip(hostname, fallback=None):
    """
    Resolves the IP for a given hostname, or returns
    the input if it is already an IP.
    """
    if is_ip(hostname):
        return hostname

    ip_addr = ns_query(hostname)
    if not ip_addr:
        try:
            ip_addr = socket.gethostbyname(hostname)
        except Exception:
            log("Failed to resolve hostname '%s'" % (hostname),
                level=WARNING)
            return fallback
    return ip_addr

def get_host_ip(hostname, fallback=None):
    """
    Resolves the IP for a given hostname, or returns
    the input if it is already an IP.
    """
    if is_ip(hostname):
        return hostname

    ip_addr = ns_query(hostname)
    if not ip_addr:
        try:
            ip_addr = socket.gethostbyname(hostname)
        except Exception:
            log("Failed to resolve hostname '%s'" % (hostname),
                level=WARNING)
            return fallback
    return ip_addr