- bugfix in class statuscodes: putted a 's' before all code numbers, dict is working now...
- bugfix in class comm, header(): status codes couldn't be handled - added import for include/statuscodes.py, class statuscodes to include/__init__.py - added encode_message() and decode_message() to class comm - added use of encode_message() to motd() in class comm - added more docstrings and comments in class comm - added more comments in asrc-server.py - moved pid file check and creation around in asrc-server.py for less oddness when starting the server with -n
This commit is contained in:
parent
1207c6b225
commit
a4f497115a
4 changed files with 185 additions and 156 deletions
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@ -33,6 +33,7 @@
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import sys, os, socket, socketserver, threading, time
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from include import argparser, comm
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class ThreadedRequestHandler(socketserver.StreamRequestHandler):
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@ -50,14 +51,14 @@ class ThreadedRequestHandler(socketserver.StreamRequestHandler):
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print("Client connected: " + str(self.client_address))
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# send motd
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self.request.sendall(comm.motd(MOTD) + "\n", ENCODING))
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self.request.sendall(bytes((comm.motd(MOTD) + "\n"), ENCODING))
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# Receive data
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self.data = str(self.rfile.readline().strip(), ENCODING)
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# content handler
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self.request.sendall(bytes(
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comm.handler(str(self.client_address), self.data), ENCODING))
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comm.command(str(self.client_address), self.data), ENCODING))
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class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
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@ -68,7 +69,6 @@ def main():
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# import global settings
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global VERBOSITY, HOST, PORT, TIMEOUT, ENCODING
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from include import argparser, comm
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comm.init(ServerVersion, ProtocolVersion, VERBOSITY, aliases)
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@ -76,20 +76,6 @@ def main():
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parser = argparser
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args = parser.parse(ServerVersion, ProtocolVersion)
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# look for pid file
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if os.path.exists("pid"):
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# remove, ...
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if args.delete_pid_file: os.remove("pid")
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# ... ignore ...
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elif args.allow_multiple_instances: pass
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# ... or exit
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else:
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print(
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"\npid file already exists\n"\
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"If the server didn't shut down correctly, "\
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"just delete this file or pass -n\n"\
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"If you want to start multiple instances, pass -m\n")
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return 1
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# set settings if command line options are given
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if args.host: HOST = args.host
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@ -98,16 +84,25 @@ def main():
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if args.encoding: ENCODING = args.encoding
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if args.verbosity: VERBOSITY = args.verbosity
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# write pid file
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pidf = open("pid", 'w')
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pidf.write(str(os.getpid()))
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pidf.close()
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print("aSRC Server\n"\
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"Server version: " + ServerVersion + "\n"\
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"Protocol version: " + ProtocolVersion + "\n\n"\
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"To stop the server, press Ctrl-C\n")
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# look for pid file
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if os.path.exists("pid"):
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# ignore ...
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if args.delete_pid_file or args.allow_multiple_instances: pass
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# ... or exit
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else:
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print(
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"\npid file already exists\n"\
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"If the server didn't shut down correctly, "\
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"just delete this file or pass -n\n"\
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"If you want to start multiple instances, pass -m\n")
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return 1
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try:
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if VERBOSITY >= 1: print("Initializing server...")
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# Create server
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@ -123,9 +118,19 @@ def main():
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ServerThread.daemon = True
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ServerThread.start()
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# look for pid file again ...
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if os.path.exists("pid"):
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# ... and remove it if -n is given
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if args.delete_pid_file: os.remove("pid")
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# write pid file
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pidf = open("pid", 'w')
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pidf.write(str(os.getpid()))
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pidf.close()
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# do nothing further
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while True:
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time.sleep(10)
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time.sleep(60)
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# exit if Ctrl-C is pressed
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except KeyboardInterrupt:
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@ -1,2 +1,3 @@
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from .argparser import argparser
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from .comm import comm
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from .statuscodes import statuscodes
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236
include/comm.py
236
include/comm.py
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@ -1,119 +1,135 @@
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# includes/comm.py
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#
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# module version: 0.0.20130426
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# for protocol versions 0.2.20130423 and later
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#
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import statuscodes
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from .statuscodes import statuscodes
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class comm:
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aliases = dict()
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server_version = ""
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protocol_version = ""
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verbosity = 0
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# initializes global settings
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def init(ServerVersion, ProtocolVersion, Verbosity, Aliases):
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aliases = Aliases
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server_version = ServerVersion
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protocol_version = ProtocolVersion
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verbosity = Verbosity
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def header(statuscode, AdditionalHeaderLines = ""):
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"""
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returns the header
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"""
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ret =\
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"{BEGIN}\n"\
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"asrcp" + protocol_version + "\n"\
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statuscode + " " + statuscodes.description[statuscodes] + "\n"\
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"ServerVersion:" + server_version + "\n"
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if AdditionalHeaderLines != "": ret += AdditionalHeaderLines + "\n"
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ret += "\n\n"
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return ret
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# returns the motd
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def motd(motd):
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"""
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builds and returns a motd package
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"""
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ret = motd
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return ret
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# handles the content
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def command(client_address, data):
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"""
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processes a command
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"""
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ret = ""
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# Look if the received message is an
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# valid alias or a predefined command
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# if it's 'version', return the server and protocol version
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if data == "version":
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if verbosity >= 2: print("Got valid service command from"
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+ str(client_address) + ": ", data)
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ret = ret +\
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"202 Valid Service Command\n"\
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"002 Version\n"\
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"ServerVersion:" + server_version + "\n"\
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"ProtocolVersion:" + protocol_version + "\n"
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# if it's 'help', give a little help
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elif data == 'help':
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if verbosity >= 2: print("Got valid command from"
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+ str(client_address) + ": ", data)
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# send status code
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ret = ret + "202 Valid Service Command\n\n"
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# send the list of aliases
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ret = ret + "Aviable aliases:\n"
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for i in aliases.keys():
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ret = ret + str(i) + "\n"
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# if it's a valid userdefined command
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elif data in aliases:
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# send status code
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ret = ret + "201 Valid Command\n\n"
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# ohmagawd! a debug message!!1!
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if verbosity >= 2: print("Got valid command from"
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+ str(client_address) + ": ", data)
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# execute the aliased command
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g_dict, l_dict = {}, {}
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exec(str(aliases[data]), g_dict, l_dict)
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# send may contain data to send to the client
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if l_dict["send"]:
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content = str(l_dict["send"]).replace('{', '\{')
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content = content.replace('}', '\}')
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ret = ret + content + "\n"
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# ALL IS LOST!!1! this has to be invalid!
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else:
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# send status code
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ret = ret + "203 Invalid Command\n"
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if verbosity >= 2: print("Got invalid command from",
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str(client_address), ": ", data)
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ret = ret + "{END}\n"
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return ret
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# some settings
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aliases = dict()
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server_version = ""
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protocol_version = ""
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verbosity = 0
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# initializes global settings
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def init(ServerVersion, ProtocolVersion, Verbosity, Aliases):
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"""
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makes settings aviable in this class
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"""
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global aliases, server_version, protocol_version, verbosity
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aliases = Aliases
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server_version = ServerVersion
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protocol_version = ProtocolVersion
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verbosity = Verbosity
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# builds an header
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def header(CodeList, AdditionalHeaderLines = ""):
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"""
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returns the header with one ore mode given status codes
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and optional additional header lines
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"""
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ret =\
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"{BEGIN}\n"\
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"asrcp" + protocol_version + "\n"
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for i in range(0, len(CodeList)):
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ret += CodeList[int(i)] + " " +\
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statuscodes.description['s' + CodeList[int(i)]] + "\n"
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ret += "ServerVersion: " + server_version + "\n" +\
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AdditionalHeaderLines + "\n\n"
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return ret
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# formats a massage
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def encode_message(text):
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"""
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formats a massage, replaces some things
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"""
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return text.replace('{', '\{').replace('}', '\}')
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# "deformats" a message
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def decode_message(text):
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"""
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removes replacements in a message
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"""
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return text.replace('\{', '{').replace('\}', '}')
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# returns the motd
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def motd(motd):
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"""
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builds and returns a motd package
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"""
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return comm.header(['202', '003']) + comm.encode_message(motd)
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# handles the content
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def command(client_address, data):
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"""
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processes a command
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"""
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ret = ""
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# Look if the received message is an
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# valid alias or a predefined command
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# if it's 'version', return the server and protocol version
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if data == "version":
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if verbosity >= 2: print("Got valid service command from"
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+ str(client_address) + ": ", data)
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ret = ret +\
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"202 Valid Service Command\n"\
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"002 Version\n"\
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"ServerVersion:" + server_version + "\n"\
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"ProtocolVersion:" + protocol_version + "\n"
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# if it's 'help', give a little help
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elif data == 'help':
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if verbosity >= 2: print("Got valid command from"
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+ str(client_address) + ": ", data)
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# send status code
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ret = ret + "202 Valid Service Command\n\n"
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# send the list of aliases
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ret = ret + "Aviable aliases:\n"
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for i in aliases.keys():
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ret = ret + str(i) + "\n"
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# if it's a valid userdefined command
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elif data in aliases:
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# send status code
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ret = ret + "201 Valid Command\n\n"
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# ohmagawd! a debug message!!1!
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if verbosity >= 2: print("Got valid command from"
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+ str(client_address) + ": ", data)
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# execute the aliased command
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g_dict, l_dict = {}, {}
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exec(str(aliases[data]), g_dict, l_dict)
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# send may contain data to send to the client
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if l_dict["send"]:
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content = str(l_dict["send"]).replace('{', '\{')
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content = content.replace('}', '\}')
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ret = ret + content + "\n"
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# ALL IS LOST!!1! this has to be invalid!
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else:
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# send status code
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ret = ret + "203 Invalid Command\n"
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if verbosity >= 2: print("Got invalid command from",
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str(client_address), ": ", data)
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ret = ret + "{END}\n"
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return ret
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@ -1,37 +1,44 @@
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# include/statuscodes.py
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#
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# module version: 1.0.20130426
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# for protocol versions 0.2.20130423 and later
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#
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class statuscodes:
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description = dict(
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# 000 - 400 server side
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# 000 information
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001 = "OK",
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002 = "Version",
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003 = "MOTD",
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s001 = "OK",
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s002 = "Version",
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s003 = "MOTD",
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# 100 authentication and maintenance
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101 = "Challenge",
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102 = "Success",
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103 = "Failure",
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104 = "To Many Tries",
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s101 = "Challenge",
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s102 = "Success",
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s103 = "Failure",
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s104 = "To Many Tries",
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# 200 command
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201 = "Valid",
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202 = "Valid Service Command",
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203 = "Invalid",
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204 = "Failure",
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205 = "Continue",
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s201 = "Valid",
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s202 = "Valid Service Command",
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s203 = "Invalid",
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s204 = "Failure",
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s205 = "Continue",
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# 300 server
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301 = "Unhandled Exception",
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302 = "Shutting Down",
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303 = "Restarting",
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304 = "Encoding Error",
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305 = "SSL Error",
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s301 = "Unhandled Exception",
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s302 = "Shutting Down",
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s303 = "Restarting",
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s304 = "Encoding Error",
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s305 = "SSL Error",
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# 500 - 900 client side
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# 500 information
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501 = "OK",
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502 = "Version",
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s501 = "OK",
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s502 = "Version",
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# 600 authentication and maintenance
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601 = "Response",
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602 = "Failure",
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s601 = "Response",
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s602 = "Failure",
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# 700 command
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701 = "Reqiuest",
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702 = "Cancel",
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s701 = "Reqiuest",
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s702 = "Cancel",
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# 800 client
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801 = "SSL Error"
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s801 = "SSL Error"
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)
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