Dodana 1., nedelujoca verzija pristopnega kolokvija 2017

git-svn-id: https://svn.lusy.fri.uni-lj.si/kpov-public-svn/kpov-public@422 5cf9fbd1-b2bc-434c-b4b7-e852f4f63414

2 files changed, 312 insertions, 1 deletions

diff --git a/kpov_judge/courses/fri_kpov/05/evaluation b/kpov_judge/courses/fri_kpov/05/evaluation
index bfe5840..71afeb3 120000
--- a/kpov_judge/courses/fri_kpov/05/evaluation
+++ b/kpov_judge/courses/fri_kpov/05/evaluation
@@ -1 +1 @@
-../../../tasks/public_ssh_motd_http
\ No newline at end of file
+../../../tasks/rename_grep_network
\ No newline at end of file
diff --git a/kpov_judge/tasks/rename_grep_network/task.py b/kpov_judge/tasks/rename_grep_network/task.py
new file mode 100644
index 0000000..cc21479
--- /dev/null
+++ b/kpov_judge/tasks/rename_grep_network/task.py
@@ -0,0 +1,311 @@
+#!/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 
+- SimpleArbiterExam s sliko diska simpleArbiterDhcp in
+SmallStudent s slikama diska student-entrance3
+in smallstudent-personal.
+
+Drugi razdelek na sliki smallstudent-personal priklopi na imenik {mntdir}
+
+Na SimpleArbiterExam se lahko prijaviš z uporabniškim imenom tester in geslom test.
+Na SmallStudentExam 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 {passwd}.
+
+Na smallstudent-personal je nekje skrita
+datoteka, ki vsebuje niz {magicstr}.
+Skopiraj jo v domači imenik {testuser} in preimenuj tako, da vse znake 'O' v imenu zamenjaš z 'I'.
+Pazi, da nobena druga datoteka v domačem imeniku v svojem imenu ne bo vsebovala "I".
+
+Poskrbi, da bo lastnik {testuser}, skupina pa naj ostane nespremenjena.
+Brati naj jo ima pravico samo lastnik, pisati lastnik in skupina, poganjati nihče.
+""",
+    'en': u'''
+''',
+}
+
+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-entrance3',
+            },
+            {
+                'name': 'smallstudent-personal',
+            }
+        ],
+        '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,
+    },
+    'passwd': {
+        'descriptions': {
+            'si': 'Geslo na SmallStudent',
+            'en': 'Password on SmallStudent',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        'generated': True,
+
+    },
+    'mntdir': {
+        'descriptions': {
+            'si': 'imenik za priklop diska',
+            'en': 'mountpoint',
+        }
+    },
+    'magicstr' : {
+        'descriptions': {
+            'si': 'Niz v iskani datoteki',
+            'en': 'String in the file you need to find',
+        },
+        'w': False,
+        'public': True,
+        'type': None,
+        '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': False,
+        'type': None,
+        'generated': True,
+    },
+}
+
+def task(testip, testuser, passwd, mntdir, magicstr, pubseed):
+    from pexpect import pxssh
+    import random
+    target = pxssh.pxssh()
+    target.login(testip, testuser, passwd)
+    target.sendline('ls ~/')
+    target.prompt()
+    home_ls = target.before
+    target.sendline('cat ~/*I*.txt')
+    target.prompt()
+    dst_file_contents = target.before
+    target.sendline('ls -l ~/*I*.txt')
+    target.prompt()
+    dst_ls = target.before
+    target.sendline('mount')
+    target.prompt()
+    mnt = target.before()
+    results = {
+        'home_ls': home_ls,
+        'dst_ls': dst_ls,
+        'mnt': mnt,
+        'dst_file_contents': dst_file_contents,
+    }
+    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['passwd'] = kpov_random_helpers.alnum_gen(r, 8)
+    params['magicstr'] = "".join([r.choice("qwerztlpoQWERTPOL") for i in range(10)])
+    params['mntdir'] = "/" + 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(r, 8)
+    params['rndseed'] = kpov_random_helpers.alnum_gen(r, 8)
+    return params
+
+
+def task_check(results, params):
+    import os
+    import re
+    hints = []
+    score = 0
+    hidden_contents = params['magicstr']
+    r = random.Random(params['rndseed'])
+    dstfile = "".join([r.choice("qQoOp") for i in range(48)]) + "I.txt"
+    dstfile = dstfile.replace('O', 'I')
+    for i in range(1000):
+        start = "".join([r.choice(["po", "p0", "no", "ko", "fo", "qo"]) for i in range(20)])
+        mid = "".join([r.choice("uiasdfghjkyxcvbnm1234567890ASDFGHJKYZXCVBNM") for i in range(60)])
+        end = r.choice(["lz", "1z", "Iz", "iz", "l2", "I2", "12"])
+        #if start[:2] == "po" and end == "lz":
+        #      start = "po"
+        #      mid = "kaka"
+        x = start + mid + end
+        hidden_contents += x + "\r\n"
+    expected_contents = hidden_contents
+    #expected_contents = re.sub(r"^po.*lz\r$", 
+    #                           r"pokakalz\r", 
+    #                           hidden_contents, 
+    #                           re.MULTILINE)
+    expected_contents = "cat ~/*I*.txt\r\n".format(dstfile) + expected_contents
+    if results["dst_file_contents"] == expected_contents:
+        score += 3
+    else:
+        diff_pos = ""
+        for i, c in enumerate(results["dst_file_contents"]):
+            if len(expected_contents) < i or c != expected_contents[i]:
+                start = max(0, i-10)
+                end = min(len(expected_contents), len(results["dst_file_contents"]), i+20)
+                diff_pos = (i, results["dst_file_contents"][start:end])
+                break
+        hints += ["wrong file contents\n" + str(diff_pos[1])]
+        #hints += ["wrong file contents"]
+    expected_ls = u"ls -l ~/*I*.txt\r\n-rw--w---- 1 {testuser} bilbo .*{dstfile}\r\n".format(**params)
+    if re.match(expected_ls, results["dst_ls"]):
+        score += 3
+    else:
+        hints += [u"missing file or wrong user/permissions\n" + results["dst_ls"]]
+    if results["home_ls"].find(params['progname']) > -1:
+        score += 2
+    else:
+        hints += ["missing program"]
+    expected_tita = u""
+    if results["tita_return"] == expected_tita:
+        score += 2
+    else:
+        hints += [u"program output incorrect\n" + results["tita_return"]]
+    return score, hints
+
+
+def prepare_disks(templates, task_params, global_params):
+    import random
+    import os
+    #print "Haha!"
+    #print params
+    #print templates
+    d = templates['smallstudent-personal']
+    # first create the file contents to make it easyer to check.
+    hidden_contents = task_params['magicstr']
+    r = random.Random(task_params['rndseed'])
+    dstfile = "".join([r.choice("qQoOp") for i in range(48)]) + "I.txt"
+    for i in range(1000):
+        x = "".join([r.choice(["po", "p0", "no", "ko", "fo", "qo"]) for i in range(20)])
+        x += "".join([r.choice("uiasdfghjkyxcvbnm1234567890ASDFGHJKYZXCVBNM") for i in range(60)])
+        x += r.choice(["lz", "1z", "Iz", "iz", "l2", "I2", "12"])
+        hidden_contents += x + "\n"
+    # create hidden file
+    dir_list = ['Qlipper', 'Thunar', 'blender', 'autostart', 'kazam', 'mc', 'netsurf', 'pulse', 'qupzilla', 'radare2', 'teamviewer', 'texstudio', 'vlc']
+    ending_list = ['rc', '.conf', '']
+    start_list = ['net', 'dev', 'doc', 'lib', 'time', 'conf']
+    r.shuffle(dir_list)
+    file_letters = ["mod", "co"]
+    d.mkdir('.hideme')
+    for potential_dir in dir_list:
+        try:
+            potential_dir = os.path.join('.hideme', potential_dir)
+            d.mkdir(potential_dir)
+            d.chown(1001, 1001, potential_dir)
+        except:
+            pass
+        rndstr2 = dstfile
+        for i in range(r.randint(2, 20)):
+            hidden_file_name = os.path.join(potential_dir, 
+                                   rndstr2)
+            d.write(hidden_file_name, hidden_contents)
+            d.chown(1001, 1001, hidden_file_name)
+            file_letters = ["stamp", "", "dev", "re"]
+            hidden_contents = "".join([r.choice("asdfghjkyxcvbnm1234567890 \n") for j in range(10000)])
+            rndstr2 = r.choice(start_list) + \
+                r.choice(file_letters) + r.choice(ending_list)
+        file_letters = file_letters + ["mod", "co"]
+    # TODO create some additional files 
+    
+    # write_default_config(templates['simpleArbiterDhcpGW'], global_params)
+    # finish here
+    # rename
+