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Diffstat (limited to 'Mac/Tools/IDE/Wsocket.py')
| -rw-r--r-- | Mac/Tools/IDE/Wsocket.py | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/Mac/Tools/IDE/Wsocket.py b/Mac/Tools/IDE/Wsocket.py deleted file mode 100644 index 82f4df5..0000000 --- a/Mac/Tools/IDE/Wsocket.py +++ /dev/null @@ -1,395 +0,0 @@ -"""Async sockets, build on top of Sam Rushing's excellent async library""" - -import asyncore -import socket -from socket import AF_INET, SOCK_STREAM -import string -import cStringIO -import mimetools -import httplib - - -__version__ = "0.9" -__author__ = "jvr" - -BUFSIZE = 512 - -VERBOSE = 1 - -class Server(asyncore.dispatcher): - - """Generic asynchronous server class""" - - def __init__(self, port, handler_class, backlog=1, host=""): - """arguments: - - port: the port to listen to - - handler_class: class to handle requests - - backlog: backlog queue size (optional) (don't fully understand, see socket docs) - - host: host name (optional: can be empty to use default host name) - """ - if VERBOSE: - print "Starting", self.__class__.__name__ - self.handler_class = handler_class - asyncore.dispatcher.__init__(self) - self.create_socket(socket.AF_INET, socket.SOCK_STREAM) - self.bind((host, port)) - self.listen(backlog) - - def handle_accept(self): - conn, addr = self.accept() - if VERBOSE: - print 'Incoming Connection from %s:%d' % addr - self.handler_class(conn) - - -class ProxyServer(Server): - - """Generic proxy server class""" - - def __init__(self, port, handler_class, proxyaddr=None, closepartners=0): - """arguments: - - port: the port to listen to - - handler_class: proxy class to handle requests - - proxyaddr: a tuple containing the address and - port of a remote host to connect to (optional) - - closepartners: boolean, specifies whether we should close - all proxy connections or not (optional). http seems to *not* - want this, but telnet does... - """ - Server.__init__(self, port, handler_class, 1, "") - self.proxyaddr = proxyaddr - self.closepartners = closepartners - - def handle_accept(self): - conn, addr = self.accept() - if VERBOSE: - print 'Incoming Connection from %s:%d' % addr - self.handler_class(conn, self.proxyaddr, closepartner=self.closepartners) - - -class Connection(asyncore.dispatcher): - - """Generic connection class""" - - def __init__(self, sock_or_address=None, readfunc=None, terminator=None): - """arguments: - - sock_or_address: either a socket, or a tuple containing the name - and port number of a remote host - - readfunc: callback function (optional). Will be called whenever - there is some data available, or when an appropraite terminator - is found. - - terminator: string which specifies when a read is complete (optional)""" - self._out_buffer = "" - self._in_buffer = "" - self.readfunc = readfunc - self.terminator = terminator - asyncore.dispatcher.__init__(self) - if hasattr(sock_or_address, "fileno"): - self.set_socket(sock_or_address) - else: - sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - sock.setblocking(0) - self.set_socket(sock) - if sock_or_address: - self.connect(sock_or_address) - - # public methods - def send(self, data): - self._out_buffer = self._out_buffer + data - - def recv(self, bytes=-1): - if bytes == -1: - bytes = len(self._in_buffer) - data = self._in_buffer[:bytes] - self._in_buffer = self._in_buffer[bytes:] - return data - - def set_terminator(self, terminator): - self.terminator = terminator - - # override this if you want to control the incoming data stream - def handle_incoming_data(self, data): - if self.readfunc: - if self.terminator: - self._in_buffer = self._in_buffer + data - pos = string.find(self._in_buffer, self.terminator) - if pos < 0: - return - data = self._in_buffer[:pos] - self._in_buffer = self._in_buffer[pos + len(self.terminator):] - self.readfunc(data) - else: - self.readfunc(self._in_buffer + data) - self._in_buffer = "" - else: - self._in_buffer = self._in_buffer + data - - # internal muck - def handle_read(self): - data = asyncore.dispatcher.recv(self, BUFSIZE) - if data: - if VERBOSE > 2: - print "incoming -> %x %r" % (id(self), data) - self.handle_incoming_data(data) - - def handle_write(self): - if self._out_buffer: - sent = self.socket.send(self._out_buffer[:BUFSIZE]) - if VERBOSE > 2: - print "outgoing -> %x %r" % (id(self), self._out_buffer[:sent]) - self._out_buffer = self._out_buffer[sent:] - - def close(self): - if self.readfunc and self._in_buffer: - self.readfunc(self._in_buffer) - self._in_buffer = "" - #elif VERBOSE > 1 and self._in_buffer: - # print "--- there is unread data: %r", (self._in_buffer,) - asyncore.dispatcher.close(self) - - def handle_close(self): - self.close() - - def handle_connect(self): - pass - - -class ConnectionUI: - - """Glue to let a connection tell things to the UI in a standardized way. - - The protocoll defines four functions, which the connection will call: - - def settotal(int total): gets called when the connection knows the data size - def setcurrent(int current): gets called when some new data has arrived - def done(): gets called when the transaction is complete - def error(type, value, tb): gets called wheneven an error occurred - """ - - def __init__(self, settotal_func, setcurrent_func, done_func, error_func): - self.settotal = settotal_func - self.setcurrent = setcurrent_func - self.done = done_func - self.error = error_func - - -class HTTPError(socket.error): pass - - -class HTTPClient(Connection, httplib.HTTP): - - """Asynchronous HTTP connection""" - - def __init__(self, (host, port), datahandler, ui=None): - Connection.__init__(self, (host, port)) - self.datahandler = datahandler - self.ui = ui - self.buf = "" - self.doneheaders = 0 - self.done = 0 - self.headers = None - self.length = None - self.pos = 0 - - def getreply(self): - raise TypeError, "getreply() is not supported in async HTTP connection" - - def handle_incoming_data(self, data): - assert not self.done - if not self.doneheaders: - self.buf = self.buf + data - pos = string.find(self.buf, "\r\n\r\n") - if pos >= 0: - self.handle_reply(self.buf[:pos+4]) - length = self.headers.getheader("Content-Length") - if length is not None: - self.length = int(length) - if self.ui is not None: - self.ui.settotal(self.length) - else: - self.length = -1 - self.doneheaders = 1 - self.handle_data(self.buf[pos+4:]) - self.buf = "" - else: - self.handle_data(data) - - def handle_reply(self, data): - f = cStringIO.StringIO(data) - ver, code, msg = string.split(f.readline(), None, 2) - code = int(code) - msg = string.strip(msg) - if code <> 200: - # Hm, this is what *I* need, but probably not correct... - raise HTTPError, (code, msg) - self.headers = mimetools.Message(f) - - def handle_data(self, data): - self.pos = self.pos + len(data) - if self.ui is not None: - self.ui.setcurrent(self.pos) - self.datahandler(data) - if self.pos >= self.length: - self.datahandler("") - self.done = 1 - if self.ui is not None: - self.ui.done() - - def handle_error(self, type, value, tb): - if self.ui is not None: - self.ui.error(type, value, tb) - else: - Connection.handle_error(self, type, value, tb) - - def log(self, message): - if VERBOSE: - print 'LOG:', message - - -class PyMessage: - - def __init__(self): - self._buf = "" - self._len = None - self._checksum = None - - def feed(self, data): - self._buf = self._buf + data - if self._len is None: - if len(self._buf) >= 8: - import struct - self._len, self._checksum = struct.unpack("ll", self._buf[:8]) - self._buf = self._buf[8:] - if self._len is not None: - if len(self._buf) >= self._len: - import zlib - data = self._buf[:self._len] - leftover = self._buf[self._len:] - self._buf = None - assert self._checksum == zlib.adler32(data), "corrupt data" - self.data = data - return 1, leftover - else: - return 0, None - else: - return 0, None - - -class PyConnection(Connection): - - def __init__(self, sock_or_address): - Connection.__init__(self, sock_or_address) - self.currentmessage = PyMessage() - - def handle_incoming_data(self, data): - while data: - done, data = self.currentmessage.feed(data) - if done: - import cPickle - self.handle_object(cPickle.loads(self.currentmessage.data)) - self.currentmessage = PyMessage() - - def handle_object(self, object): - print 'unhandled object:', repr(object) - - def send(self, object): - import cPickle, zlib, struct - data = cPickle.dumps(object, 1) - length = len(data) - checksum = zlib.adler32(data) - data = struct.pack("ll", length, checksum) + data - Connection.send(self, data) - - -class Echo(Connection): - - """Simple echoing connection: it sends everything back it receives.""" - - def handle_incoming_data(self, data): - self.send(data) - - -class Proxy(Connection): - - """Generic proxy connection""" - - def __init__(self, sock_or_address=None, proxyaddr=None, closepartner=0): - """arguments: - - sock_or_address is either a socket or a tuple containing the - name and port number of a remote host - - proxyaddr: a tuple containing a name and a port number of a - remote host (optional). - - closepartner: boolean, specifies whether we should close - the proxy connection (optional)""" - - Connection.__init__(self, sock_or_address) - self.other = None - self.proxyaddr = proxyaddr - self.closepartner = closepartner - - def close(self): - if self.other: - other = self.other - self.other = None - other.other = None - if self.closepartner: - other.close() - Connection.close(self) - - def handle_incoming_data(self, data): - if not self.other: - # pass data for possible automatic remote host detection - # (see HTTPProxy) - data = self.connectproxy(data) - self.other.send(data) - - def connectproxy(self, data): - other = self.__class__(self.proxyaddr, closepartner=self.closepartner) - self.other = other - other.other = self - return data - - -class HTTPProxy(Proxy): - - """Simple, useless, http proxy. It figures out itself where to connect to.""" - - def connectproxy(self, data): - if VERBOSE: - print "--- proxy request", repr(data) - addr, data = de_proxify(data) - other = Proxy(addr) - self.other = other - other.other = self - return data - - -# helper for HTTPProxy -def de_proxify(data): - import re - req_pattern = "GET http://([a-zA-Z0-9-_.]+)(:([0-9]+))?" - m = re.match(req_pattern, data) - host, dummy, port = m.groups() - if not port: - port = 80 - else: - port = int(port) - # change "GET http://xx.xx.xx/yy" into "GET /yy" - data = re.sub(req_pattern, "GET ", data) - return (host, port), data - - -# if we're running "under W", let's register the socket poller to the event loop -try: - import W -except: - pass -else: - W.getapplication().addidlefunc(asyncore.poll) - - -## testing muck -#testserver = Server(10000, Connection) -#echoserver = Server(10007, Echo) -#httpproxyserver = Server(8088, HTTPProxy, 5) -#asyncore.close_all() |