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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# kpov_random_helpers should be imported by add_assignment.py
# TODO (polz):
instructions = {
'si':u"""
Prijavi se na sistem kot uporabnik student z geslom vaje.
V domači mapi najdeš imenik Mapa z 20 datotekami.
- Preimenuj vse datoteke tako, da zamenjaš minuse s podčrtaji
- Napiši čim krajši ukaz v bash, ki vse datoteke iz enega (izvornega) podanega imenika premakne v drug (ciljni) podani imenik. Spravi ga v /home/student/mv_ukaz. Pazi, da bodo ob testiranju v izvornem imeniku iste datoteke, kot so bile, ko je bila virtualka nova, ciljni imenik pa bo prazen.
- Napiši ukaz, ki s pomočjo ukaza grep v datoteko ~/mama.txt izpiše vse navadne (ne skrite) datoteke v trenutnem imeniku, ki vsebujejo niz "mama", v datoteko ~/napake.txt pa izpiše vse morebitne napake (npr. to, da so nekateri objekti v trenutnem imeniku dejansko imeniki ali napačne simbolične povezave). Ukaz spravite v datoteko /home/student/mama_ukaz.
- Napiši program (lahko v bash), ki bo 5s sledil vsebini /var/log/syslog. V primeru, da se v syslogu pojavi niz "zmeda", naj program izpiše "imam ga". Poleg tega naj program med sledenjem syslog-u odšteva od 5 do 1 (vsako sekundo naj se izpiše naslednja številka. Program naj bo v /home/student/syslog_ukaz.sh
- Nastavi okoljsko spremenljivko TEST, da bo imela isto vrednost kot okoljska spremenljivka USER + število okoljskih spremenljivk, ki v imenu ali vrednosti ne vsebujejo besede TEST. Primer: polz37
# tole je zoprno, ker se lahko zelo hitro spremeni. Treba bo izbrati
# neko drugo stran - recimo http://localhost/mojastran.html
- S pomočjo programa cURL preštej pojavitev niza "images" v html kodi (shranjena stran 24ur.com) in število zapiši v spremenljivko $images.
- V imeniku "Mapa" najdeš datoteko count.txt. Preštej število vrstic v njej in rezultat zapiši v novo datoteko lines.txt
- Namesti paket "cowsay" in ga preizkusi :)
- Napiši najkrajši ukaz, ki s pomočjo Pythona zažene preprost (integriran) HTTP strežnik kateri streže datoteke iz imenika, ki ga dobite podanega.
""",
'en':u"""
Log into the system.
In your home folder you will find a directory called Folder containing 20 files.
- Rename all files replacing minus sign with the underscore
- Specify the shortest command for copying all the files located in /home/user/Folder into the folder /home/user/new
- Specify the shortest command, which will, using the grep command,
write all normal (not hidden) files containing a string "mama" located
in working directory (pwd) into file "mama.txt" while writing errors such as files in current directory being folders or symbolic links in the file called "Errors.txt"
- Specify a command, which will track the contents of /var/log/syslog
for 5s. In case it finds the entry "confusion" in syslog, print "got it".
In addition, let the program subtrack 1 from the counter every
second(5 to 1) to show the status of the tracker.
- Set the variable TEST, which will have the same value as the
variable USER + the number of variables that do not include the name
TEST, for example polz37.
- With the help of cURL count the number of "images" string occurences in html code (saved 24ur.com website) and save it to variable $images.
- In directory "Mapa" exists file count.txt
- Install packet "cowsay" and test it :)
- Write shortest command possible which will with the help of Python start a simple (integrated) HTTP server and will serve the files from the current directory on port 8000."""
}
computers = {
'malishell': {
'disks': [
{ 'name': 'malishell',
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'SimpleArbiter': {
'disks': [
{ 'name': 'simpleArbiterDhcp',
# attempt automount
},
#{ 'name': 'CDROM',
# 'options': {'readonly': True},
# 'parts': [{'dev': 'b1', 'path': '/cdrom'}],
#},
],
'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
'flavor': 'm1.tiny',
'config_drive': False
}
}
networks = { 'net1': {'public': False}, 'test-net': {'public': True} }
params_meta = {
'IP_malishell': {'descriptions': {'si': 'Naslov malishell'}, 'w': True, 'public':True, 'type': 'IP', 'generated': False},
'file_creator_random_seed': {'descriptions': {'si': 'random file creator seed'}, 'w': False, 'public':False, 'type': None, 'generated': True},
'file_rename_dirname': {'descriptions': {'si': 'imenik z datotekami, ki naj se jih preimenuje'}, 'w': False, 'public':True, 'type': 'dirname', 'generated': True},
'mv_src_dir': {'descriptions': {'si': 'imenik, iz katerega premakni datoteke'}, 'w': False, 'public':True, 'type': 'dirname', 'generated': True},
'mv_dst_dir': {'descriptions': {'si': 'imenik, v katerega premakni datoteke'}, 'w': False, 'public':True, 'type': 'dirname', 'generated': True},
'cowsay_string': {'descriptions': {'si': 'Kaj rece krava?'}, 'w': False, 'public':True, 'type': 'short', 'generated': True},
'syslog_n_zmeda': {'descriptions': {'si': 'st. zapisov zmeda v 5s'}, 'w': False, 'public':True, 'type': 'uint', 'generated': True},
}
def task(IP_malishell, file_rename_dirname, mv_src_dir, mv_dst_dir, cowsay_string):
import pxssh
# TODO: (polz) this has to be changed! Get a move on!
#
# sv: Z primozem lavricem sva skusala nekaj narediti
# Ker gen params ni narejen, sklepam da je "Mapa" na namizju,
# imena datotek pa so: 1,1-,2,2-,3,3-,4,5,6,7,8,9,.mama1,mama2,mama3,mama4,mama5,mojimenik,novi,oce1
# v mojimenik se nahaja mojimenikfile
# mama2 vsebuje "mama"
#Stirje subt-aski dodani.By Mihec.
results = dict()
conn = pxssh.pxssh()
conn.login(IP_malishell, 'student', 'vaje')
# preimenuj datoteke
conn.sendline('/bin/ls -a1 {}'.format(file_rename_dirname))
conn.prompt()
results['preimenuj'] = conn.before
# premakni datoteke s cim krajsim ukazom
conn.sendline('/bin/ls -a1 {}'.format(mv_src_dir))
conn.prompt()
results['pre_mv_src'] = conn.before
conn.sendline('/bin/ls -a1 {}'.format(mv_dst_dir))
conn.prompt()
results['pre_mv_dst'] = conn.before
conn.sendline('/bin/ls -l ~/mv_ukaz')
conn.prompt()
results['mv_ls_size'] = conn.before
conn.sendline('. ~/mv_ukaz')
conn.prompt()
conn.sendline('/bin/ls -a1 {}'.format(mv_src_dir))
conn.prompt()
results['post_mv_src'] = conn.before
conn.sendline('/bin/ls -a1 {}'.format(mv_dst_dir))
conn.prompt()
results['post_mv_dst'] = conn.before
# mama_ukaz
#
conn.sendline('cd /home/student/grep_test_dir')
conn.prompt()
conn.sendline('. ~/mama_ukaz')
conn.prompt()
conn.sendline('cat ~/napake.txt')
conn.prompt()
results['grep_napake'] = conn.before
conn.sendline('cat ~/mama.txt')
conn.prompt()
results['grep_mama'] = conn.before
# sledenje syslog
conn.sendline('date')
conn.prompt()
conn.sendline('/usr/local/bin/syslog_spammer &')
conn.prompt()
results['syslog_start_time'] = conn.before
conn.sendline('/home/student/syslog_ukaz.sh')
conn.prompt()
results['syslog_result'] = conn.before
conn.sendline('date')
conn.prompt()
results['syslog_end_time'] = conn.before
conn.sendline('cowsay "{}"'.format(cowsay_string))
conn.prompt()
results['cowsay'] = conn.before
conn.logout()
#results['curl'] = subprocess.check_output(["cat","/home/student/Desktop/website.txt"])
#results['chkimages'] = subprocess.check_output(["curl www.24ur.com >> dlg.txt && cat dlg.txt | grep -c ","images"])
#results['count'] = subprocess.check_output(["wc","/home/student/Desktop/count.txt"])
#results['lines'] = subprocess.check_output(["cat","/home/student/Desktop/lines.txt"])
#results['cowsay'] = subprocess.check_output(["dpkg --get-selections | grep","cowsay"])
#results['phttp'] = subprocess.check_output(["lsof -i ",":8080"])
return results
def gen_params(user_id, params_meta):
import random
import subprocess
params = dict()
homedir = '/home/student/'
r = random.Random(user_id)
params['file_creator_random_seed'] = str(r.random())
params['file_rename_dirname'] = homedir + kpov_random_helpers.default_generators['dirname'](r)
params['mv_src_dir'] = homedir + "".join([r.choice("abcdefgh") for i in xrange(6)])
params['mv_dst_dir'] = homedir + "".join([r.choice("ijklmnop") for i in xrange(6)])
params['syslog_n_zmeda'] = str(r.randint(5, 15))
params['cowsay_string'] = kpov_random_helpers.default_generators['short_text'](r)
#params['phttp'] = "8080"
#params['images'] = subprocess.check_output(["echo","$images"])
return params
def task_check(results, params):
import re
import random
score = 0
r = random.Random(params['file_creator_random_seed'])
fnames = []
for i in xrange(20):
fnames.append("".join([ r.choice("_abcdefghijk") for j in xrange(8)]))
#TO FINISH SCORING WE REQUIRE DICT KEYS AND FUNCTIONS gen_params AND task TO BE FINISHED
#POINTS FOR EACH TASK MAY BE ADJUSTED IN THE FUTURE
#TASK 1
# print( results['preimenuj'])
lines = results['preimenuj'].split("\n")
task1_ok = len(lines) == len(fnames) + 4
task1_ok = task1_ok and lines[0].find(params['file_rename_dirname']) >= 0
task1_ok = task1_ok and lines[1].strip() == "."
task1_ok = task1_ok and lines[2].strip() == ".."
# print task1_ok
for fname in fnames:
# print task1_ok, fname, results['preimenuj'].find(fname)
task1_ok = task1_ok and results['preimenuj'].find(fname) > 0
if task1_ok:
score += 2
# premakni datoteke s cim krajsim ukazom
fnames = []
for i in xrange(40):
fnames.append("".join([ r.choice("123456789abcdefghijk") for j in xrange(8)]))
task2_re = re.search(
r"-rw[x-][r-][w-][x-][r-][w-][x-] \d* student student (\d*) .*mv_ukaz",
results['mv_ls_size'])
mv_ls_size = int(task2_re.group(1))
task2_ok = mv_ls_size < 15 and mv_ls_size > 2
pre_src = set([i.strip() for i in results['pre_mv_src'].split('\n')[3:-1]])
pre_dst = set([i.strip() for i in results['pre_mv_dst'].split('\n')[3:-1]])
task2_ok = task2_ok and pre_src == set(fnames)
task2_ok = task2_ok and len(pre_dst) < 2
post_src = set([i.strip() for i in results['post_mv_src'].split('\n')[3:-1]])
post_dst = set([i.strip() for i in results['post_mv_dst'].split('\n')[3:-1]])
task2_ok = task2_ok and post_dst == set(fnames)
task2_ok = task2_ok and len(post_src) < 2
if task2_ok:
score += 2
# mama_ukaz
#
task3_ok = True
mama_fnames = []
for i in xrange(20):
mama_fnames.append("".join([ r.choice("123456789abcdefghijk") for j in xrange(8)]))
papa_fnames = []
for i in xrange(20):
papa_fnames.append("".join([ r.choice("123456789abcdefghijk") for j in xrange(8)]))
dirnames = []
for i in xrange(20):
dirnames.append("".join([ r.choice("123456789abcdefghijk") for j in xrange(8)]))
linknames = []
for i in xrange(20):
linknames.append("".join([ r.choice("123456789abcdefghijk") for j in xrange(8)]))
print( results['grep_mama'])
print( results['grep_napake'])
for i in dirnames + linknames + papa_fnames:
if (i not in papa_fnames) and results['grep_napake'].find(i) < 0:
task3_ok = False
if results['grep_mama'].find(i) >= 0:
task3_ok = False
for i in papa_fnames:
if results['grep_napake'].find(i) >= 0:
task3_ok = False
if results['grep_mama'].find(i) >= 0:
task3_ok = False
for i in mama_fnames:
if results['grep_mama'].find(i) < 0:
task3_ok = False
if task3_ok:
score += 2
# sledenje syslog
print( results['syslog_start_time'])
print( results['syslog_result'])
print( results['syslog_end_time'])
return score
def prepare_disks(templates, params):
# d = templates['simpleArbiterDhcp']
import random
print "Haha!"
print params
print templates
d = templates['malishell']
r = random.Random(params['file_creator_random_seed'])
# rename
d.mkdir(params['file_rename_dirname'])
d.chown("student", "student", params['file_rename_dirname'])
for i in xrange(20):
fname = params['file_rename_dirname'] + '/' + "".join(
[r.choice("-abcdefghijk") for j in xrange(8)])
d.touch(fname)
d.chown("student", "student", fname)
# mv ukaz
d.mkdir(params['mv_src_dir'])
d.chown("student", "student", params['mv_src_dir'])
for i in xrange(40):
fname = params['mv_src_dir'] + '/' +"".join(
[r.choice("123456789abcdefghijk") for j in xrange(8)])
d.touch(fname)
d.chown("student", "student", fname)
d.mkdir(params['mv_dst_dir'])
d.chown("student", 'student', params['mv_dst_dir'])
# grep mama
# mama fnames
d.mkdir('/home/student/grep_test_dir')
for i in xrange(20):
d.write("/home/student/grep_test_dir/" + "".join(
[ r.choice("123456789abcdefghijk") for j in xrange(8)]),
"mama")
# papa fnames
for i in xrange(20):
d.write("/home/student/grep_test_dir/" + "".join(
[ r.choice("123456789abcdefghijk") for j in xrange(8)]),
"papa")
# dirnames
for i in xrange(20):
d.mkdir("/home/student/grep_test_dir/" + "".join(
[ r.choice("123456789abcdefghijk") for j in xrange(8)]))
# linknames
for i in xrange(20):
d.ln_sf("mali zeleni", "/home/student/grep_test_dir/" + "".join(
[ r.choice("123456789abcdefghijk") for j in xrange(8)]))
# sledenje syslog
spammer_source = "#!/bin/sh\n" + int(params['syslog_n_zmeda']) * "logger zmeda\n"
d.write("/usr/local/bin/syslog_spammer", spammer_source)
d.chmod("0775", "/usr/local/bin/syslog_spammer")
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