def found_terminator (self):
self.buffer, data = [], ''.join(self.buffer)
if self.pstate is self.STATE_LENGTH:
packet_length = int(data, 16)
self.set_terminator (packet_length)
self.pstate = self.STATE_PACKET
else:
self.set_terminator (8)
self.pstate = self.STATE_LENGTH
(path, params) = marshal.loads (data)
o = self.root
e = None
try:
for p in path:
o = getattr (o, p)
result = apply (o, params)
except:
e = repr (asyncore.compact_traceback())
result = None
rb = marshal.dumps ((e,result))
self.push (('%08x' % len(rb)) + rb)
def found_terminator(self):
self.buffer, data = [], ''.join(self.buffer)
if self.pstate is self.STATE_LENGTH:
packet_length = int(data, 16)
self.set_terminator(packet_length)
self.pstate = self.STATE_PACKET
else:
self.set_terminator(8)
self.pstate = self.STATE_LENGTH
(path, params) = marshal.loads(data)
o = self.root
e = None
try:
for p in path:
o = getattr(o, p)
result = apply(o, params)
except:
e = repr(asyncore.compact_traceback())
result = None
rb = marshal.dumps((e, result))
self.push(('%08x' % len(rb)) + rb)
def found_terminator (self):
line = self.in_buffer
if not len(line):
return
sp = line.find(' ')
if sp != -1:
line = [line[:sp], line[sp+1:]]
else:
line = [line]
command = line[0].lower()
# watch especially for 'urgent' abort commands.
if command.find('abor') != -1:
# ascii_letters for python 3
letters = getattr(string, "letters", string.ascii_letters)
# strip off telnet sync chars and the like...
while command and command[0] not in letters:
command = command[1:]
fun_name = 'cmd_%s' % command
if command != 'pass':
self.log ('<== %s' % repr(self.in_buffer)[1:-1])
else:
self.log ('<== %s' % line[0]+' <password>')
self.in_buffer = ''
if not hasattr (self, fun_name):
self.command_not_understood (line[0])
return
if hasattr(self,'_rnfr_src') and fun_name!='cmd_rnto':
del self._rnfr_src
self.respond ('503 RNTO Command expected!')
return
fun = getattr (self, fun_name)
if (not self.authorized) and (command not in ('user', 'pass', 'help', 'quit')):
self.respond ('530 Please log in with USER and PASS')
elif (not self.check_command_authorization (command)):
self.command_not_authorized (command)
else:
try:
result = apply (fun, (line,))
except:
self.server.total_exceptions.increment()
(file, fun, line), t,v, tbinfo = asyncore.compact_traceback()
if self.client_dc:
try:
self.client_dc.close()
except:
pass
self.respond (
'451 Server Error: %s, %s: file: %s line: %s' % (
t,v,file,line,
)
)
def reap (self): # find DNS requests that have timed out
now = int(time.time())
if now - self.last_reap_time > 180: # reap every 3 minutes
self.last_reap_time = now # update before we forget
for k,(host,unpack,callback,when) in self.request_map.items():
if now - when > 180: # over 3 minutes old
del self.request_map[k]
try: # same code as in handle_read
callback (host, 0, None) # timeout val is (0,None)
except:
(file,fun,line), t, v, tbinfo = asyncore.compact_traceback()
self.log_info('%s %s %s' % (t,v,tbinfo), 'error')
def handle_read (self):
reply, whence = self.socket.recvfrom (512)
# for security reasons we may want to double-check
# that <whence> is the server we sent the request to.
id = (ord(reply[0])<<8) + ord(reply[1])
if self.request_map.has_key (id):
host, unpack, callback, when = self.request_map[id]
del self.request_map[id]
ttl, answer = unpack (reply)
try:
callback (host, ttl, answer)
except:
(file,fun,line), t, v, tbinfo = asyncore.compact_traceback()
self.log_info('%s %s %s' % ( t,v,tbinfo), 'error')
def handle_read(self):
try:
self.recv(8192)
except socket.error:
return
self.lock.acquire()
try:
for thunk in self.thunks:
try:
thunk()
except:
nil, t, v, tbinfo = asyncore.compact_traceback()
print ("exception in trigger thunk:" " (%s:%s %s)" % (t, v, tbinfo))
self.thunks = []
finally:
self.lock.release()
def handle_read(self):
try:
self.recv(8192)
except socket.error:
return
self.lock.acquire()
try:
for thunk in self.thunks:
try:
thunk()
except:
nil, t, v, tbinfo = asyncore.compact_traceback()
print('exception in trigger thunk:'
' (%s:%s %s)' % (t, v, tbinfo))
self.thunks = []
finally:
self.lock.release()
def found_terminator (self):
self.buffer, data = [], ''.join(self.buffer)
if self.pstate is self.STATE_LENGTH:
packet_length = int(data, 16)
self.set_terminator (packet_length)
self.pstate = self.STATE_PACKET
else:
self.set_terminator (8)
self.pstate = self.STATE_LENGTH
oid, kind, arg = marshal.loads (data)
obj, refcnt = self.proxies[oid]
e = None
reply_kind = 2
try:
if kind == 0:
# __call__
result = apply (obj, arg)
elif kind == 1:
# __getattr__
result = getattr (obj, arg)
elif kind == 2:
# __setattr__
key, value = arg
setattr (obj, key, value)
result = None
elif kind == 3:
# __repr__
result = repr(obj)
elif kind == 4:
# __del__
self.forget_reference (oid)
result = None
elif kind == 5:
# __getitem__
result = obj[arg]
elif kind == 6:
# __setitem__
(key, value) = arg
obj[key] = value
result = None
elif kind == 7:
# __len__
result = len(obj)
except:
reply_kind = 1
(file,fun,line), t, v, tbinfo = asyncore.compact_traceback()
result = '%s:%s:%s:%s (%s:%s)' % (MY_NAME, file, fun, line, t, str(v))
self.log_info (result, 'error')
self.exception_counter.increment()
self.request_counter.increment()
# optimize a common case
if type(result) is types.InstanceType:
can_marshal = 0
else:
can_marshal = 1
try:
rb = marshal.dumps ((reply_kind, result))
except ValueError:
can_marshal = 0
if not can_marshal:
# unmarshallable object, return a reference
rid = id(result)
self.new_reference (result)
rb = marshal.dumps ((0, rid))
self.push_with_producer (
scanning_producer (
('%08x' % len(rb)) + rb,
buffer_size = 65536
)
)
def found_terminator (self):
if self.current_request:
self.current_request.found_terminator()
else:
header = self.in_buffer
self.in_buffer = ''
lines = string.split (header, '\r\n')
# --------------------------------------------------
# crack the request header
# --------------------------------------------------
while lines and not lines[0]:
# as per the suggestion of http-1.1 section 4.1, (and
# Eric Parker <*****@*****.**>), ignore a leading
# blank lines (buggy browsers tack it onto the end of
# POST requests)
lines = lines[1:]
if not lines:
self.close_when_done()
return
request = lines[0]
command, uri, version = crack_request (request)
header = join_headers (lines[1:])
# unquote path if necessary (thanks to Skip Montanaro for pointing
# out that we must unquote in piecemeal fashion).
rpath, rquery = splitquery(uri)
if '%' in rpath:
if rquery:
uri = unquote (rpath) + '?' + rquery
else:
uri = unquote (rpath)
r = http_request (self, request, command, uri, version, header)
self.request_counter.increment()
self.server.total_requests.increment()
if command is None:
self.log_info ('Bad HTTP request: %s' % repr(request), 'error')
r.error (400)
return
# --------------------------------------------------
# handler selection and dispatch
# --------------------------------------------------
for h in self.server.handlers:
if h.match (r):
try:
self.current_request = r
# This isn't used anywhere.
# r.handler = h # CYCLE
h.handle_request (r)
except:
self.server.exceptions.increment()
(file, fun, line), t, v, tbinfo = asyncore.compact_traceback()
self.log_info(
'Server Error: %s, %s: file: %s line: %s' % (t,v,file,line),
'error')
try:
r.error (500)
except:
pass
return
# no handlers, so complain
r.error (404)
def found_terminator(self):
self.buffer, data = [], ''.join(self.buffer)
if self.pstate is self.STATE_LENGTH:
packet_length = int(data, 16)
self.set_terminator(packet_length)
self.pstate = self.STATE_PACKET
else:
self.set_terminator(8)
self.pstate = self.STATE_LENGTH
oid, kind, arg = marshal.loads(data)
obj, refcnt = self.proxies[oid]
e = None
reply_kind = 2
try:
if kind == 0:
# __call__
result = apply(obj, arg)
elif kind == 1:
# __getattr__
result = getattr(obj, arg)
elif kind == 2:
# __setattr__
key, value = arg
setattr(obj, key, value)
result = None
elif kind == 3:
# __repr__
result = repr(obj)
elif kind == 4:
# __del__
self.forget_reference(oid)
result = None
elif kind == 5:
# __getitem__
result = obj[arg]
elif kind == 6:
# __setitem__
(key, value) = arg
obj[key] = value
result = None
elif kind == 7:
# __len__
result = len(obj)
except:
reply_kind = 1
(file, fun, line), t, v, tbinfo = asyncore.compact_traceback()
result = '%s:%s:%s:%s (%s:%s)' % (MY_NAME, file, fun, line, t,
str(v))
self.log_info(result, 'error')
self.exception_counter.increment()
self.request_counter.increment()
# optimize a common case
if type(result) is types.InstanceType:
can_marshal = 0
else:
can_marshal = 1
try:
rb = marshal.dumps((reply_kind, result))
except ValueError:
can_marshal = 0
if not can_marshal:
# unmarshallable object, return a reference
rid = id(result)
self.new_reference(result)
rb = marshal.dumps((0, rid))
self.push_with_producer(
scanning_producer(('%08x' % len(rb)) + rb, buffer_size=65536))
def handle_error (self): # don't close the connection on error
(file,fun,line), t, v, tbinfo = asyncore.compact_traceback()
self.log_info(
'Problem with DNS lookup (%s:%s %s)' % (t, v, tbinfo),
'error')
def found_terminator (self):
line = self.clean_line (self.data)
self.data = ''
self.line_counter.increment()
# check for special case inputs...
if not line and not self.multi_line:
self.prompt()
return
if line in ['\004', 'exit']:
self.push ('BCNU\r\n')
self.close_when_done()
return
oldout = sys.stdout
olderr = sys.stderr
try:
p = output_producer(self, olderr)
sys.stdout = p
sys.stderr = p
try:
# this is, of course, a blocking operation.
# if you wanted to thread this, you would have
# to synchronize, etc... and treat the output
# like a pipe. Not Fun.
#
# try eval first. If that fails, try exec. If that fails,
# hurl.
try:
if self.multi_line:
# oh, this is horrible...
raise SyntaxError
co = compile (line, repr(self), 'eval')
result = eval (co, self.local_env)
method = 'eval'
if result is not None:
print repr(result)
self.local_env['_'] = result
except SyntaxError:
try:
if self.multi_line:
if line and line[0] in [' ','\t']:
self.multi_line.append (line)
self.push ('... ')
return
else:
self.multi_line.append (line)
line = '\n'.join(self.multi_line)
co = compile (line, repr(self), 'exec')
self.multi_line = []
else:
co = compile (line, repr(self), 'exec')
except SyntaxError, why:
if why.args[0] == 'unexpected EOF while parsing':
self.push ('... ')
self.multi_line.append (line)
return
else:
t,v,tb = sys.exc_info()
del tb
raise t(v)
exec co in self.local_env
method = 'exec'
except:
method = 'exception'
self.multi_line = []
(file, fun, line), t, v, tbinfo = asyncore.compact_traceback()
self.log_info('%s %s %s' %(t, v, tbinfo), 'warning')
finally:
sys.stdout = oldout
sys.stderr = olderr
self.log_info('%s:%s (%s)> %s' % (
self.number,
self.line_counter,
method,
repr(line))
)
self.push_with_producer (p)
self.prompt()
