Added first draft of the entrance exam

git-svn-id: https://svn.lusy.fri.uni-lj.si/kpov-public-svn/kpov-public@405 5cf9fbd1-b2bc-434c-b4b7-e852f4f63414

1 files changed, 260 insertions, 0 deletions

diff --git a/kpov_judge/tasks/edit_find_grep_compile_convert/task.py b/kpov_judge/tasks/edit_find_grep_compile_convert/task.py
new file mode 100644
index 0000000..1d7f210
--- /dev/null
+++ b/kpov_judge/tasks/edit_find_grep_compile_convert/task.py
@@ -0,0 +1,260 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# TODO:
+# - check if everything is filled in (computers, params, preparation)
+# - improve scoring
+# - test
+# - switch to a real SSH/SFTP client to properly handle filenames
+
+
+instructions = {
+    'si':u"""
+Ustvari dva navidezna računalnika s slikama diskov 
+- SimpleArbiter s sliko diska simpleArbiterDhcp in 
+SmallStudent s sliko diska student-entrance2.
+
+Na SimpleArbiter se lahko prijaviš z uporabniškim imenom tester in geslom test.
+Na SmallStudent se lahko prijaviš kot root z geslom kaboom.
+
+Poskrbi, da bo SmallStudent s SimpleArbiter dostopen na naslovu {testip}.
+
+Na SmallStudent ustvari uporabnika {testuser} z geslom {pass}.
+
+Na SmallStudent je nekje v domačem imeniku uporabnika "bilbo" skrita datoteka, ki vsebuje niz {magicstr}.
+Skopiraj jo v domači imenik {testuser} in poimenuj {dstfile}.
+Poskrbi, da bo lastnik {testuser}, skupina pa naj ostane nespremenjena.
+Brati naj jo ima pravico samo lastnik.
+V {dstfile} zamenjaj vse vrstice oblike poXYZlz, kjer so XYZ poljubni znaki, tako, da bo namesto XYZ niz "kaka".
+
+Napiši program v poljubnem programskem jeziku, ki kot argument sprejme število B med 0 in 7.
+Program naj prebere znak s standardnega izhoda in izpiše vrstico z nizom "ta", 
+če je B-ti bit v znaku nastavljen na 1, in "ti" sicer.
+Program poimenuj {progname} in ga spravi v domači imenik {testuser}.
+""",
+    'en': u'''
+Create two virtual machines
+- SimpleArbiter using simpleArbiterDhcp as the disk image and
+SmallStudent using student-entrance2 as its disk.
+
+You can log in as testr on SimpleArbiter with the password test.
+You can log in as root on SimpleStudent with the password kaboom.
+
+Make sure that SmallStudent is accessible from SimpleArbiter on IP {testip}.
+
+Create a user {testuser} with the password {pass} on SmallStudent.
+
+There is a file containing {magicstr} hidden somewhere in the home directory of
+user "bilbo".
+Copy the into the home directory of user bilbo and name it {dstfile}.
+Change the owner to {testuser} and leave the group unchanged.
+Make sure only the owner has the right to read it.
+In {dstfile}, replace all lines of the form poXYZlz where XYZ are arbitrary characters so that XYZ is replaced by "kaka".
+
+Write a program in any programming language.
+The program should accept a single argument, B, which is a number between 0 and 7.
+It should read a character from standard input and output "ta" if B-th bit in this character is
+set to 1. If B-th bit is not set, the program should output "ti".
+Name the program {progname} and place it in the home directory of {testuser}.
+''',
+}
+
+instructions = {'si': 'Potrpite.', 'en': 'Have patience.'}
+
+computers = {
+    'SimpleArbiter': {
+        'disks': [
+            {
+                'name': 'simpleArbiterDhcpGW',
+            },
+        ],
+        'network_interfaces': [
+            {
+                'network': 'net1',
+                'network': 'net2',
+            },
+        ],
+        'flavor': 'm1.tiny',
+        'config_drive': False,
+    }
+    'SmallStudent': {
+        'disks': [
+            {
+                'name': 'student-entrance2',
+            },
+        ],
+        'network_interfaces': [
+            {
+                'network': 'net2',
+            },
+        ],
+        'flavor': 'm1.tiny',
+        'config_drive': False, 
+    }
+}
+
+networks = {
+    'net1': {
+        'public': True,
+    },
+    'net2': {
+        'public': False,
+    }
+}
+
+params_meta = {
+    'testip': {
+        'descriptions': {
+            'si': 'IP SmallStudent',
+            'en': 'IP SmallStudent',
+        },
+        'w': False,
+        'public': True,
+        'type': 'IP',
+        'generated': True,
+    },
+    'testuser': {
+        'descriptions': {
+            'si': 'Uporabnik na SmallStudent',
+            'en': 'Username on SmallStudent',
+        },
+        'w': False,
+        'public': True,
+        'type': 'username',
+        'generated': True,
+    },
+    'pass': {
+        'descriptions': {
+            'si': 'Geslo na SmallStudent',
+            'en': 'Password on SmallStudent',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        'generated': True,
+
+    },
+    'magicstr':{
+        'descriptions': {
+            'si': 'Niz v iskani datoteki',
+            'en': 'String in the file you need to find',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        'generated': True,
+
+    },
+    'dstfile':{
+        'descriptions': {
+            'si': 'Ciljno ime datoteke',
+            'en': 'Destination filename',
+        },
+        'w': False,
+        'public': True,
+        'type': 'filename',
+        'generated': True,
+    },
+    'progname':{
+        'descriptions': {
+            'si': 'Ime programa',
+            'en': 'Program filename',
+        },
+        'w': False,
+        'public': True,
+        'type': 'filename',
+        'generated': True,
+    },
+    'pubseed':{
+        'descriptions': {
+            'si': 'Nekaj nepredvidenega',
+            'en': 'A random seed',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        'generated': True,
+    },
+    'rndseed':{
+        'descriptions': {
+            'si': 'random seed za skrito datoteko',
+            'en': 'random seed for hiding the file',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        'generated': True,
+    },
+}
+
+def task(host, folder):
+    from pexpect import pxssh
+    # ideally, this would be done using a SFTP client instead of pxssh
+    target = pxssh.pxssh()
+    target.login(host, 'test', 'test')
+    results = {
+        'files': target.run('ls -1').split('\n'), # XXX: file may have newlines
+        'contents': target.run("cat *"), # XXX: may include other files in $HOME
+    }
+    target.logout()
+    return results
+
+def gen_params(user_id, params_meta):
+    import random
+    params = dict()
+    r = random.Random(user_id)
+    params['testip'] = kpov_random_helpers.IPv4_addr_gen(r, 
+                            network = '10.94.80.0/19', n_generated=1)[0]
+    params['testuser'] = kpov_random_helpers.default_generators['username'](r)
+    params['pass'] = kpov_random_helpers.alnum_gen(8)
+    params['magicstr'] = kpov_random_helpers.alnum_gen(8)
+    params['dstfile'] = kpov_random_helpers.default_generators['filename'](r)
+    params['progname'] = kpov_random_helpers.default_generators['filename'](r)
+    while params['dstfile'] == params['progname']:
+        params['progname'] = kpov_random_helpers.default_generators['filename'](r)
+    params['pubseed'] = kpov_random_helpers.alnum_gen(8)
+    params['rndseed'] = kpov_random_helpers.alnum_gen(8)
+    return params
+
+
+def task_check(results, params):
+    import os
+    if rl == tl:
+        score += 4
+    else:
+        hints += ["wrong files"]
+    return score, hints
+
+
+def prepare_disks(templates, task_params, global_params):
+    import random
+    import os
+    #print "Haha!"
+    #print params
+    #print templates
+    d = templates['SmallStudent']
+    r = random.Random(task_params['rndseed'])
+    # create hidden file
+    dir_list = ['Qlipper', 'Thunar', 'blender', 'autostart', 'kazam', 'mc', 'netsurf', 'pulse', 'qupzilla', 'radare2', 'teamviewer', 'texstudio', 'vlc']
+    rndstr1 = r.choice(dir_list)
+    ending_list = ['rc', '.conf', '']
+    start_list = ['net', 'dev', 'doc', 'lib', 'time', 'conf']
+    rndstr2 = r.choice(start_list) + \
+        r.choice("abcdexghijuop") + r.choice(ending_list)
+    hidden_file_dir = os.path.join('/home/bilbo/.config',
+                                   rndstr1)
+    d.mkdir(hidden_file_dir)
+    hidden_file_name = os.path.join(hidden_file_dir, 
+                                   rndstr2)
+    d.chown(1002, 1002, hidden_file_dir)
+    d.chown(1002, 1002, hidden_file_name)
+    # TODO create the file contents
+    s = task_params['magicstr']
+    # add poXYZlz lines to s
+    d.write(hidden_file_name, s)
+    # TODO create some additional files 
+    
+    write_default_config(templates['simpleArbiterDhcpGW'], global_params)
+    # finish here
+    # rename
+