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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# bson.son.SON an
# kpov_random_helpers should be imported by add_assignment.py
# OrderedDict = SON
instructions = {
"si":u"""
Ustvari dva navidezna računalnika - imenujmo ju SimpleArbiterDhcpGW in Student. Za računalnik SimpleArbiterDhcpGW uporabite
sliko diska, poimenovano SimpleArbiterDhcpGW. Na računalniku SimpleArbiterDhcpGW dobite kratek niz. Poskrbite, da se bo ta
kratki niz pojavil v sporočilu, ki se ob prijavi izpiše na računalniku Student. Temu sporočilu v
angleščini rečemo "message of the day" - MOTD.
Poskrbite, da se bo ob prijavi uporabnika (v Message Of The Day, MOTD) prek ssh izpisal nek niz.
Računalnik nastavite tako, da bo dostopen s testnega računalnika (SimpleArbiterDhcpGW). Najpreprosteje bo,
da SimpleArbiterDhcpGW priklopite na omrežje, ki ima dostop do Interneta (npr. prek NAT) in na navidezno omrežje med
navideznimi računalniki (npr. intnet); računalnik Student priklopite le na navidezno omrežje (npr. intnet).
Uporabniško ime in niz dobite kot parametre ob zagonu run_test.py. Pri nizu pazite, saj utegne biti dovolj dolg, da brez premikanja kurzorja ne bo takoj viden.
IP navideznega računalnika ter geslo nastavite sami.
Ocenjevalni program pričakuje, da se bo ob koncu prijave pojavila ukazna vrstica oblike uporabnisko_ime@ime_racunalnika:~$ . Pazite, da se bo takšna vrstica pojavila šele po nizu, ki ste ga dobili v navodilih.
""",
'en':u"""
Create two virtual machines - named SimpleArbiterDhcpGW and Student. For the 'SimpleArbiterDhcpGW' use disc image named SimpleArbiterDhcpGW. You receive short string on machine 'SimpleArbiterDhcpGW'. Make sure that this string appears in the message which is displayed after you login to machine 'Student'. This is so called 'message of the day'MOTD.
Make sure that when the user logins via ssh some string is displayed. Set the machine, so that you can reach it from test computer (SimpleArbiterDhcpGW)
You get username and string as parameters when you run run_test.py. Pay attention to the string length, it might not be visible right away without moving the cursor.
Set up IP and password of virtual machine yourself.
Grading system expects, that at the end of login, a command line similar to uporabnisko_ime@ime_racunalnika:~$ appears. Make sure that this line shows up after the string you got in the instructions.
"""
}
computers = {
'SimpleArbiterDhcpGW': {
'disks': [
{ 'name': 'SimpleArbiterDhcpGW',
},
],
'flavor': 'm1.tiny',
'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
'config_drive': True,
'userdata': {'string': "#!/bin/bash\nsed -i '/cloud/d' /etc/fstab\npoweroff &\n"}
},
'Student': {
'disks': [
{ 'name': 'Student', }
],
'flavor': 'm1.tiny',
'network_interfaces': [{'network': 'net1'}],
'config_drive': True,
'userdata': {'string': "#!/bin/bash\nsed -i '/cloud/d' /etc/fstab\npoweroff &\n"}
}
}
networks = { 'net1': {'public': False}, 'test-net': {'public': True} }
params_meta = {
'peer_ip': {'descriptions': {'si': u'IP računalnika'}, 'w': True, 'public':True, 'type': 'IP', 'generated': False},
'peer_user': {'descriptions': {'si': 'ime uporabnika'}, 'w': False, 'public': True, 'type': 'username', 'generated': True},
'peer_passwd': {'descriptions': {'si': 'geslo uporabnika'}, 'w': True, 'public': True, 'type': 'alnumstr', 'generated': False},
'niz': {'descriptions':{'si': u'niz, ki naj se v motd pokaže'}, 'w': False, 'public': True, 'type': 'short_text', 'generated': True},
}
def task(peer_ip, peer_user, peer_passwd, niz):
"Check whether ssh works"
import pxssh
import pexpect
# return {"hello": 'kitty'}
results = dict()
s = pxssh.pxssh()
#TODO (polz): tole bi utegnilo delovati http://pexpect.sourceforge.net/pxssh.html. Testirajte
s.login (peer_ip, peer_user, peer_passwd, original_prompt=r'{0}@.*:\~\$'.format(peer_user),auto_prompt_reset=False)
# print s.before
# s.prompt()
#Ce na serverju iz datoteke /var/run/motd.dynamic pobrisemo znak '#' bi moralo delovati.
# temp = s.before # print everything before the prompt.
#TODO (polz): tole ni pravi pristop. Problem je bil v tem, da pxssh ni prav zaznal, kdaj je prijavljen. Glej link zgoraj.
results['motd'] = s.before # print everything before the prompt.
return results
#
def gen_params(user_id, params_meta):
return kpov_random_helpers.default_gen(user_id, params_meta)
def task_check(results, params):
#print task_url
#print params
#print results
niz = params['niz']
score = 0
if (results['motd'].find(niz) > -1):
score += 10
return score
def prepare_disks(templates, params):
# print d1.ls('/')
pass
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