- cleaned class argparser
- commented and cleaned asrc-server.py - renamed includes/content.py to includes/comm.py - renamed class content to comm - made some vars (aliases, server_version, protocol_version, verbiosity) global in class comm - added init() to class comm for setting lobal vars - moved motd() from asrc-server-py to class comm - conformed comm.motd() to reference - added comm.header() for building the headers - added includes/statuscodes.py with class statuscodes with dict description for storing the status codes and their description - added docstrings
This commit is contained in:
parent
fbb4653740
commit
1207c6b225
6 changed files with 306 additions and 297 deletions
302
asrc-server.py
302
asrc-server.py
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@ -25,7 +25,7 @@
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# aSRC (Aliased Server Remote Control)
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# - SERVER -
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#
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# program version: 0.0.0.20130424
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# program version: 0.0.0.20130426
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# protocol version: 0.2.20130423
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#
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#
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@ -35,243 +35,175 @@
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import sys, os, socket, socketserver, threading, time
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def motd():
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return MOTD
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#def content(client_address, data):
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#ret = ""
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#ret = ret +\
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#"{BEGIN}\n"\
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#"asrcp" + ProtocolVersion + "\n"
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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:" + ServerVersion + "\n"\
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#"ProtocolVersion:" + ProtocolVersion + "\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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class ThreadedRequestHandler(socketserver.StreamRequestHandler):
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def handle(self):
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def handle(self):
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"""
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Handles incoming connections
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"""
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# Set time for timeout in seconds
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self.timeout = TIMEOUT
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# Set time for timeout in seconds
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self.timeout = TIMEOUT
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# Print a line with the adress of the connected client
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if VERBOSITY >=3:
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print("Client connected: " + str(self.client_address))
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# Print a line with the adress of the connected client
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if VERBOSITY >=3:
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print("Client connected: " + str(self.client_address))
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# send header line 1
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self.request.sendall(bytes
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("asrpc " + ProtocolVersion + "\n", ENCODING))
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# send motd
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self.request.sendall(comm.motd(MOTD) + "\n", ENCODING))
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# send motd
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self.request.sendall(bytes(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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# 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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content.handler(str(self.client_address), self.data, aliases,
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ServerVersion, ProtocolVersion, VERBOSITY), 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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class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
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pass
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pass
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def main():
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global VERBOSITY, HOST, PORT, TIMEOUT, ENCODING
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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, content
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from include import argparser, comm
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parser = argparser
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args = parser.parse(ServerVersion, ProtocolVersion)
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comm.init(ServerVersion, ProtocolVersion, VERBOSITY, aliases)
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if os.path.exists("pid"):
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if args.delete_pid_file: os.remove("pid")
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elif args.allow_multiple_instances: pass
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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, just delete this file "\
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"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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# parse arguments
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parser = argparser
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args = parser.parse(ServerVersion, ProtocolVersion)
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print(args)
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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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if args.host: HOST = args.host
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if args.port: PORT = args.port
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if args.timeout: TIMEOUT = args.timeout
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if args.encoding: ENCODING = args.encoding
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if args.verbosity: VERBOSITY = args.verbosity
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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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if args.port: PORT = args.port
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if args.timeout: TIMEOUT = args.timeout
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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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# 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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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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try:
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if VERBOSITY >= 1: print("Initializing server...")
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# Create server
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server = ThreadedTCPServer((HOST, PORT), ThreadedRequestHandler)
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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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server = ThreadedTCPServer((HOST, PORT), ThreadedRequestHandler)
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if VERBOSITY >= 1: print("Starting server on",
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server.server_address[0], "port", server.server_address[1], "...")
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# Start a thread with the server -- that thread will then start one
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# more thread for each request
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ServerThread = threading.Thread(target = server.serve_forever)
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if VERBOSITY >= 1: print("Starting server on",
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server.server_address[0], "port", server.server_address[1], "...")
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# Start a thread with the server -- that thread will then start one
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# more thread for each request
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ServerThread = threading.Thread(target = server.serve_forever)
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# Exit the server thread when the main thread terminates
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ServerThread.daemon = True
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ServerThread.start()
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# Exit the server thread when the main thread terminates
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ServerThread.daemon = True
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ServerThread.start()
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while True:
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time.sleep(10)
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except KeyboardInterrupt:
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print("\nGot Ctrl-C, shutting down server...")
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while True:
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time.sleep(10)
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try:
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server.shutdown()
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os.remove("pid")
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except: print("Failed to shutdown server correctly, "\
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"socket may be still in use or wasn't even started:",
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sys.exc_info())
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#except:
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# print("\nAn error occured:\n", sys.exc_info(), "\n")
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# exit if Ctrl-C is pressed
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except KeyboardInterrupt:
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print("\nGot Ctrl-C, shutting down server...")
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if VERBOSITY >= 3: input("Press Enter to continue\n")
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return 0
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try:
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server.shutdown()
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os.remove("pid")
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except: print("Failed to shutdown server correctly, "\
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"socket may be still in use or wasn't even started:",
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sys.exc_info())
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#except:
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# print("\nAn error occured:\n", sys.exc_info(), "\n")
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if VERBOSITY >= 3: input("Press Enter to continue\n")
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return 0
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if __name__ == '__main__':
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ServerVersion = "0.0.0"
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ProtocolVersion = "0.2"
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ServerVersion = "0.0.0"
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ProtocolVersion = "0.2"
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##############
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# SETTINGS #
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##############
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##############
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# SETTINGS #
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##############
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# IP or hostname (use 0.0.0.0 for all interfaces) and port, on which
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# the server should listen
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HOST = '127.0.0.1'
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PORT = 24642
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# IP or hostname (use 0.0.0.0 for all interfaces) and port, on which
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# the server should listen
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HOST = '127.0.0.1'
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PORT = 24642
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# Timeout of a connection in seconds - still doesn't work obviously...
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TIMEOUT = 15
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# Timeout of a connection in seconds - still doesn't work obviously...
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TIMEOUT = 15
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# Encoding to be used when communicating with a client
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ENCODING = 'utf-8'
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# Encoding to be used when communicating with a client
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ENCODING = 'utf-8'
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# Dictionary of aliases. Use python syntax. You can use
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# the variable send for text to send to the client.
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#
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# Shell commands can be executed with:
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# import subprocess
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# send = subprocess.check_output(["command", "arg", "somemorearg"])
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#
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# You don't have to include sys, os, socket, socketserver,
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# threading and time, through they are included already.
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aliases = dict(
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who = '''
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# Dictionary of aliases. Use python syntax. You can use
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# the variable send for text to send to the client.
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#
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# Shell commands can be executed with:
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# import subprocess
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# send = subprocess.check_output(["command", "arg", "somemorearg"])
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#
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# You don't have to include sys, os, socket, socketserver,
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# threading and time, through they are included already.
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aliases = dict(
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who = '''
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import subprocess
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send = subprocess.check_output(["whoami"])
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''',
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where = '''
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where = '''
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import subprocess
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send = subprocess.check_output(["pwd"])
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''',
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uname = '''
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uname = '''
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import os
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send = os.uname()
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''',
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date = '''
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date = '''
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import subprocess
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send = subprocess.check_output(["date"])
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''',
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ping_fanir = '''
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ping_fanir = '''
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import subprocess
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send = subprocess.check_output(["ping", "-c 2", "fanir.de"])
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''')
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# This is sent to the client after the connection is established
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MOTD = "Welcome! This is only a test server, for developing purposes.\n"\
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"Here (may) be more text..."
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# This is sent to the client after the connection is established
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MOTD = "Welcome! This is only a test server, for developing purposes.\n"\
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"Here (may) be more text..."
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# Verbosity of logging.
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# Can be from 0 (only default output) to 3 (debug messages)
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VERBOSITY = 3
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##############
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# Verbosity of logging.
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# Can be from 0 (only default output) to 3 (debug messages)
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VERBOSITY = 3
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##############
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main()
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main()
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Binary file not shown.
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@ -1,2 +1,2 @@
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from .argparser import argparser
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from .content import content
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from .comm import comm
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@ -1,78 +1,77 @@
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# includes/argparser.py
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#
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# module version: 1.0.20130424
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# module version: 1.0.20130425
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#
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class argparser:
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def parse(program_version, protocol_version):
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import argparse
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def parse(program_version, protocol_version):
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"""
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Parses comand line arguments
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"""
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parser = argparse.ArgumentParser(
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description = "The server side of the "\
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"aliased server remote control",
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add_help = False)
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import argparse
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parser = argparse.ArgumentParser(
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description = "The server side of the "\
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"aliased server remote control",
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add_help = False)
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parser.add_argument(
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"--help",
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action = "help",
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help = "show this help message and exit")
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parser.add_argument(
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"--help",
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action = "help",
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help = "show this help message and exit")
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parser.add_argument(
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"--version",
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action = "version",
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version = "Server version: " + program_version +\
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" / Protocol version: " + protocol_version)
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parser.add_argument(
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"--version",
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action = "version",
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version = "Server version: " + program_version +\
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" / Protocol version: " + protocol_version)
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grp_pid_file_failure = parser.add_mutually_exclusive_group()
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grp_pid_file_failure.add_argument(
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"-n",
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"--delete-pid-file",
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action = "store_true",
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help = "deletes the pid file and starts the server")
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grp_pid_file_failure = parser.add_mutually_exclusive_group()
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grp_pid_file_failure.add_argument(
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"-n",
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"--delete-pid-file",
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action = "store_true",
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help = "deletes the pid file and starts the server")
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grp_pid_file_failure.add_argument(
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"-m",
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"--allow-multiple-instances",
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action = "store_true",
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help = "ignores the pid file and starts the server. "\
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"Will not create another pid file.")
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grp_pid_file_failure.add_argument(
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"-m",
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"--allow-multiple-instances",
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action = "store_true",
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help = "ignores the pid file and starts the server. "\
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"Will not create another pid file.")
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parser.add_argument(
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"-v",
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"--verbosity",
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type = int,
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choices = range(0, 4),
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# default = -1,
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help = "increase output verbosity. Can be from 0 "\
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"(only default output) to 3 (debug messages).")
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parser.add_argument(
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"-v",
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"--verbosity",
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type = int,
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choices = range(0, 4),
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help = "increase output verbosity. Can be from 0 "\
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"(only default output) to 3 (debug messages).")
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parser.add_argument(
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"-h",
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"--host",
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# default = -1,
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help = "IP or hostname (use 0.0.0.0 for all interfaces) on which "\
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"the server should listen")
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parser.add_argument(
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"-h",
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"--host",
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help = "IP or hostname (use 0.0.0.0 for all interfaces) on which "\
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"the server should listen")
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parser.add_argument(
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"-p",
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"--port",
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# default = -1,
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help = "the port on which the server should listen")
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parser.add_argument(
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"-p",
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"--port",
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help = "the port on which the server should listen")
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parser.add_argument(
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"-t",
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"--timeout",
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# default = -1,
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help = "timeout of a connection in seconds - still "\
|
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"doesn't work obviously...")
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parser.add_argument(
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"-t",
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"--timeout",
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help = "timeout of a connection in seconds - still "\
|
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"doesn't work obviously...")
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parser.add_argument(
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"-e",
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"--encoding",
|
||||
# default = -1,
|
||||
help = "encoding to be used when communicating with clients")
|
||||
parser.add_argument(
|
||||
"-e",
|
||||
"--encoding",
|
||||
help = "encoding to be used when communicating with clients")
|
||||
|
||||
return parser.parse_args()
|
||||
return parser.parse_args()
|
||||
|
|
|
|||
|
|
@ -1,18 +1,59 @@
|
|||
# includes/content.py
|
||||
# includes/comm.py
|
||||
#
|
||||
# module version: 0.0.20130424
|
||||
# module version: 0.0.20130426
|
||||
#
|
||||
|
||||
|
||||
class content:
|
||||
import statuscodes
|
||||
|
||||
# handler the content
|
||||
def handler(client_address, data, aliases, server_version, protocol_version, verbosity):
|
||||
ret = ""
|
||||
|
||||
ret = ret +\
|
||||
class comm:
|
||||
|
||||
aliases = dict()
|
||||
server_version = ""
|
||||
protocol_version = ""
|
||||
verbosity = 0
|
||||
|
||||
# initializes global settings
|
||||
def init(ServerVersion, ProtocolVersion, Verbosity, Aliases):
|
||||
|
||||
aliases = Aliases
|
||||
server_version = ServerVersion
|
||||
protocol_version = ProtocolVersion
|
||||
verbosity = Verbosity
|
||||
|
||||
def header(statuscode, AdditionalHeaderLines = ""):
|
||||
"""
|
||||
returns the header
|
||||
"""
|
||||
|
||||
ret =\
|
||||
"{BEGIN}\n"\
|
||||
"asrcp" + protocol_version + "\n"
|
||||
"asrcp" + protocol_version + "\n"\
|
||||
statuscode + " " + statuscodes.description[statuscodes] + "\n"\
|
||||
"ServerVersion:" + server_version + "\n"
|
||||
if AdditionalHeaderLines != "": ret += AdditionalHeaderLines + "\n"
|
||||
ret += "\n\n"
|
||||
|
||||
return ret
|
||||
|
||||
# returns the motd
|
||||
def motd(motd):
|
||||
"""
|
||||
builds and returns a motd package
|
||||
"""
|
||||
|
||||
ret = motd
|
||||
|
||||
return ret
|
||||
|
||||
# handles the content
|
||||
def command(client_address, data):
|
||||
"""
|
||||
processes a command
|
||||
"""
|
||||
|
||||
ret = ""
|
||||
|
||||
# Look if the received message is an
|
||||
# valid alias or a predefined command
|
||||
37
include/statuscodes.py
Normal file
37
include/statuscodes.py
Normal file
|
|
@ -0,0 +1,37 @@
|
|||
class statuscodes:
|
||||
description = dict(
|
||||
# 000 - 400 server side
|
||||
# 000 information
|
||||
001 = "OK",
|
||||
002 = "Version",
|
||||
003 = "MOTD",
|
||||
# 100 authentication and maintenance
|
||||
101 = "Challenge",
|
||||
102 = "Success",
|
||||
103 = "Failure",
|
||||
104 = "To Many Tries",
|
||||
# 200 command
|
||||
201 = "Valid",
|
||||
202 = "Valid Service Command",
|
||||
203 = "Invalid",
|
||||
204 = "Failure",
|
||||
205 = "Continue",
|
||||
# 300 server
|
||||
301 = "Unhandled Exception",
|
||||
302 = "Shutting Down",
|
||||
303 = "Restarting",
|
||||
304 = "Encoding Error",
|
||||
305 = "SSL Error",
|
||||
# 500 - 900 client side
|
||||
# 500 information
|
||||
501 = "OK",
|
||||
502 = "Version",
|
||||
# 600 authentication and maintenance
|
||||
601 = "Response",
|
||||
602 = "Failure",
|
||||
# 700 command
|
||||
701 = "Reqiuest",
|
||||
702 = "Cancel",
|
||||
# 800 client
|
||||
801 = "SSL Error"
|
||||
)
|
||||
Loading…
Reference in a new issue