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1 | 66d17b40 | Apollon Oikonomopoulos | #!/usr/bin/env python
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2 | 0c251ab5 | Apollon Oikonomopoulos | #
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3 | 7183f55d | Faidon Liambotis | # Copyright (c) 2010-2011 Greek Research and Technology Network S.A.
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4 | 0c251ab5 | Apollon Oikonomopoulos | #
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5 | 0c251ab5 | Apollon Oikonomopoulos | # This program is free software; you can redistribute it and/or modify
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6 | 0c251ab5 | Apollon Oikonomopoulos | # it under the terms of the GNU General Public License as published by
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7 | 0c251ab5 | Apollon Oikonomopoulos | # the Free Software Foundation; either version 2 of the License, or
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8 | 0c251ab5 | Apollon Oikonomopoulos | # (at your option) any later version.
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9 | 0c251ab5 | Apollon Oikonomopoulos | #
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10 | 0c251ab5 | Apollon Oikonomopoulos | # This program is distributed in the hope that it will be useful, but
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11 | 0c251ab5 | Apollon Oikonomopoulos | # WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | 0c251ab5 | Apollon Oikonomopoulos | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | 0c251ab5 | Apollon Oikonomopoulos | # General Public License for more details.
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14 | 0c251ab5 | Apollon Oikonomopoulos | #
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15 | 0c251ab5 | Apollon Oikonomopoulos | # You should have received a copy of the GNU General Public License
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16 | 0c251ab5 | Apollon Oikonomopoulos | # along with this program; if not, write to the Free Software
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17 | 0c251ab5 | Apollon Oikonomopoulos | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 | 0c251ab5 | Apollon Oikonomopoulos | # 02110-1301, USA.
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19 | 66d17b40 | Apollon Oikonomopoulos | |
20 | 66d17b40 | Apollon Oikonomopoulos | import sys |
21 | 66d17b40 | Apollon Oikonomopoulos | import socket |
22 | 66d17b40 | Apollon Oikonomopoulos | |
23 | 48b1400e | Vangelis Koukis | try:
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24 | 48b1400e | Vangelis Koukis | import simplejson as json |
25 | 48b1400e | Vangelis Koukis | except ImportError: |
26 | 48b1400e | Vangelis Koukis | import json |
27 | 48b1400e | Vangelis Koukis | |
28 | 03a592b9 | Vangelis Koukis | DEFAULT_CTRL_SOCKET = "/var/run/vncauthproxy/ctrl.sock"
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29 | 66d17b40 | Apollon Oikonomopoulos | |
30 | 31965126 | Vangelis Koukis | |
31 | 03a592b9 | Vangelis Koukis | def parse_arguments(args): |
32 | 03a592b9 | Vangelis Koukis | from optparse import OptionParser |
33 | 03a592b9 | Vangelis Koukis | |
34 | 03a592b9 | Vangelis Koukis | parser = OptionParser() |
35 | 03a592b9 | Vangelis Koukis | parser.add_option("-c", "--socket", dest="ctrl_socket", |
36 | 03a592b9 | Vangelis Koukis | default=DEFAULT_CTRL_SOCKET, |
37 | 03a592b9 | Vangelis Koukis | metavar="PATH",
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38 | 03a592b9 | Vangelis Koukis | help=("UNIX socket for connecting to vncauthproxy "
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39 | 03a592b9 | Vangelis Koukis | "(default: %s)" % DEFAULT_CTRL_SOCKET))
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40 | 03a592b9 | Vangelis Koukis | parser.add_option('-s', dest="sport", |
41 | 03a592b9 | Vangelis Koukis | default=0, type="int", |
42 | 03a592b9 | Vangelis Koukis | metavar='PORT',
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43 | 03a592b9 | Vangelis Koukis | help=("Use source port PORT for incoming connections "
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44 | 03a592b9 | Vangelis Koukis | "(default: allocate a port automatically)"))
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45 | 03a592b9 | Vangelis Koukis | parser.add_option("-d", "--dest", |
46 | 03a592b9 | Vangelis Koukis | default=None, dest="daddr", |
47 | 03a592b9 | Vangelis Koukis | metavar="HOST",
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48 | 03a592b9 | Vangelis Koukis | help="Proxy connection to destination host HOST")
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49 | 03a592b9 | Vangelis Koukis | parser.add_option("-p", "--dport", dest="dport", |
50 | 03a592b9 | Vangelis Koukis | default=None, type="int", |
51 | 03a592b9 | Vangelis Koukis | metavar="PORT",
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52 | 03a592b9 | Vangelis Koukis | help="Proxy connection to destination port PORT")
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53 | 03a592b9 | Vangelis Koukis | parser.add_option("-P", "--password", dest="password", |
54 | 03a592b9 | Vangelis Koukis | default=None,
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55 | 03a592b9 | Vangelis Koukis | metavar="PASSWORD",
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56 | 03a592b9 | Vangelis Koukis | help=("Use password PASSWD to authenticate incoming "
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57 | 03a592b9 | Vangelis Koukis | "VNC connections"))
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58 | 03a592b9 | Vangelis Koukis | |
59 | 03a592b9 | Vangelis Koukis | (opts, args) = parser.parse_args(args) |
60 | 03a592b9 | Vangelis Koukis | |
61 | 03a592b9 | Vangelis Koukis | # Mandatory arguments
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62 | 03a592b9 | Vangelis Koukis | if not opts.password: |
63 | 03a592b9 | Vangelis Koukis | parser.error("The -P/--password argument is mandatory.")
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64 | 03a592b9 | Vangelis Koukis | if not opts.daddr: |
65 | 03a592b9 | Vangelis Koukis | parser.error("The -d/--dest argument is mandatory.")
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66 | 03a592b9 | Vangelis Koukis | if not opts.dport: |
67 | 03a592b9 | Vangelis Koukis | parser.error("The -p/--dport argument is mandatory.")
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68 | 03a592b9 | Vangelis Koukis | |
69 | 03a592b9 | Vangelis Koukis | return (opts, args)
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70 | 03a592b9 | Vangelis Koukis | |
71 | 03a592b9 | Vangelis Koukis | |
72 | 03a592b9 | Vangelis Koukis | def request_forwarding(sport, daddr, dport, password, |
73 | 03a592b9 | Vangelis Koukis | ctrl_socket=DEFAULT_CTRL_SOCKET): |
74 | 03a592b9 | Vangelis Koukis | """Connect to vncauthproxy and request a VNC forwarding."""
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75 | 03a592b9 | Vangelis Koukis | if not password: |
76 | 03a592b9 | Vangelis Koukis | raise ValueError("You must specify a non-empty password") |
77 | 03a592b9 | Vangelis Koukis | |
78 | 48b1400e | Vangelis Koukis | req = { |
79 | 48b1400e | Vangelis Koukis | "source_port": int(sport), |
80 | 48b1400e | Vangelis Koukis | "destination_address": daddr,
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81 | 48b1400e | Vangelis Koukis | "destination_port": int(dport), |
82 | 48b1400e | Vangelis Koukis | "password": password
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83 | 48b1400e | Vangelis Koukis | } |
84 | 66d17b40 | Apollon Oikonomopoulos | |
85 | 66d17b40 | Apollon Oikonomopoulos | ctrl = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) |
86 | 03a592b9 | Vangelis Koukis | ctrl.connect(ctrl_socket) |
87 | 48b1400e | Vangelis Koukis | ctrl.send(json.dumps(req)) |
88 | 48b1400e | Vangelis Koukis | |
89 | 66d17b40 | Apollon Oikonomopoulos | response = ctrl.recv(1024)
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90 | 48b1400e | Vangelis Koukis | res = json.loads(response) |
91 | 48b1400e | Vangelis Koukis | return res
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92 | 66d17b40 | Apollon Oikonomopoulos | |
93 | 03a592b9 | Vangelis Koukis | |
94 | 66d17b40 | Apollon Oikonomopoulos | if __name__ == '__main__': |
95 | 03a592b9 | Vangelis Koukis | (opts, args) = parse_arguments(sys.argv[1:])
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96 | 03a592b9 | Vangelis Koukis | |
97 | 03a592b9 | Vangelis Koukis | res = request_forwarding(sport=opts.sport, daddr=opts.daddr, |
98 | 03a592b9 | Vangelis Koukis | dport=opts.dport, password=opts.password, |
99 | 03a592b9 | Vangelis Koukis | ctrl_socket=opts.ctrl_socket) |
100 | 03a592b9 | Vangelis Koukis | |
101 | 03a592b9 | Vangelis Koukis | sys.stderr.write("Forwaring %s -> %s:%s: %s\n" % (res['source_port'], |
102 | 03a592b9 | Vangelis Koukis | opts.daddr, opts.dport, |
103 | 03a592b9 | Vangelis Koukis | res['status']))
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104 | 03a592b9 | Vangelis Koukis | |
105 | 48b1400e | Vangelis Koukis | if res['status'] == "OK": |
106 | 48b1400e | Vangelis Koukis | sys.exit(0)
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107 | 48b1400e | Vangelis Koukis | else:
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108 | 48b1400e | Vangelis Koukis | sys.exit(1) |