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-rw-r--r--kpov_judge/tasks/mock_entrance_exam/task.py81
1 files changed, 43 insertions, 38 deletions
diff --git a/kpov_judge/tasks/mock_entrance_exam/task.py b/kpov_judge/tasks/mock_entrance_exam/task.py
index 7080f4c..46fc7da 100644
--- a/kpov_judge/tasks/mock_entrance_exam/task.py
+++ b/kpov_judge/tasks/mock_entrance_exam/task.py
@@ -12,7 +12,7 @@ Poskrbi, da bosta oba na istem omrežju in da bo imel Student naslov {student_IP
simpleArbiter povezan na Internet. Računajte, da se na studentGUI ob zagonu zažene program {net_prog_name},
ki vam spreminja nastavitve mrežne kartice.
-V domačem imeniku uporabnika student obstaja program {P_c} v programskem jeziku C. Prevedite ga v program z imenom {P_executable}. Izvorna koda je namenoma pokvarjena tako, da so vanjo vrinjeni nepotrebni znaki. Pred prevajanjem jo morate popraviti.
+V domačem imeniku uporabnika student (geslo je "vaje") obstaja datoteka {P_c} v programskem jeziku C. Z uporabo gcc ga prevedite v program z imenom {P_executable}. Izvorna koda je namenoma pokvarjena tako, da so vanjo vrinjeni nepotrebni znaki. Pred prevajanjem jo morate popraviti.
Napišite skripto ali program {P_script} v domačem imeniku uporabnika student, ki:
- požene {P_c} z argumentom {arg_c} in mu na standardni vhod pripelje vrednost spremenljivke {env_c}
@@ -20,7 +20,7 @@ Napišite skripto ali program {P_script} v domačem imeniku uporabnika student,
- vse vrstice, ki jih {P_c} izpiše na stdout in vsebujejo zaporedje znakov "ma", zapiše v {out_stdout_c}.
-Lastnik vseh ustvarjenih datotek mora biti uporabnik test. Gesla uporabnika test
+Lastnik vseh ustvarjenih datotek mora biti uporabnik student. Gesla uporabnika student
ne smete spreminjati.
""",
@@ -44,7 +44,7 @@ computers = {
},
'Student': {
'disks': [
- {'name': 'student-mock_entrance'}
+ {'name': 'student-entrance'}
],
'flavor': 'm1.tiny',
'network_interfaces': [{'network': 'net1'}],
@@ -74,7 +74,7 @@ params_meta = {
'descriptions': { 'si': 'Datoteka s programom v C', 'en': 'Filename of the program in C',
}, 'w': False, 'public': True, 'type': 'filename', 'generated': True,
},
- 'P_executable': { 'description': { 'si': 'Ime prevedenega programa v C', 'en': 'Filename of the compiled C program'
+ 'P_executable': { 'descriptions': { 'si': 'Ime prevedenega programa v C', 'en': 'Filename of the compiled C program'
}, 'w': False, 'public': True, 'type': 'filename', 'generated': True,
},
'arg_c': {
@@ -113,9 +113,9 @@ def task(student_IP, net_prog_name,
param_gen_seed):
import pxssh
import random
- # ideally, this would be done using a SFTP client instead of pxssh
- target = pxssh.pxssh()
- # target.login(student_IP, 'test', 'test')
+ conn = pxssh.pxssh()
+ conn.login(student_IP, 'student', 'vaje')
+ results = dict()
r = random.Random(param_gen_seed)
env_val = "".join([r.choice('ABCDEFGHIJKLMNPRSTUVZ012345') for i in xrange(11)])
@@ -123,37 +123,37 @@ def task(student_IP, net_prog_name,
stdin_val = "".join([r.choice('ABCDEFGHIJKLMNPRSTUVZ012345') for i in xrange(17)])
conn.sendline('ls -l {}'.format(P_script))
conn.prompt()
- results['script_ls'] = conn.before()
+ results['script_ls'] = conn.before
conn.sendline('ls -l {}'.format(P_executable))
conn.prompt()
- results['executable_ls'] = conn.before()
+ results['executable_ls'] = conn.before
conn.sendline('export {}={}; {}'.format(env_c, env_val, P_script))
conn.prompt()
- results['script_run'] = conn.before()
- conn.sendline('cat {}', out_stderr_c)
+ results['script_run'] = conn.before
+ conn.sendline('cat {}'.format(out_stderr_c))
conn.prompt()
- results['script_stderr'] = conn.before()
- conn.sendline('cat {}', out_stdout_c)
+ results['script_stderr'] = conn.before
+ conn.sendline('cat {}'.format(out_stdout_c))
conn.prompt()
- results['script_stdout'] = conn.before()
+ results['script_stdout'] = conn.before
conn.sendline('echo "{}" | {} "{}" 2> /dev/null'.format(stdin_val, P_executable, arg_val))
conn.prompt()
- results['prog_stdout'] = conn.before()
+ results['prog_stdout'] = conn.before
conn.sendline('echo "{}" | {} "{}" > /dev/null'.format(stdin_val, P_executable, arg_val))
conn.prompt()
- results['prog_stderr'] = conn.before()
- target.logout()
+ results['prog_stderr'] = conn.before
+ conn.logout()
return results
def gen_params(user_id, params_meta):
import random
r = random.Random(user_id)
params = kpov_random_helpers.default_gen(user_id, params_meta)
- homedir = '/home/student'
+ homedir = '/home/student/'
params['env_c'] = "".join([r.choice('ABCDEFGHIJKLMNPRSTUVZ') for i in xrange(5)])
params['P_c'] = "".join([r.choice('abcdefghijklmnoprst') for i in xrange(5)]) + ".c"
- params['param_gen_seed'] = r.randint(0, 2**24)
- params['c_destroy_gen_seed'] = r.randint(0, 2**24)
+ params['param_gen_seed'] = str(r.randint(0, 2**24))
+ params['c_destroy_gen_seed'] = str(r.randint(0, 2**24))
for k in ['P_c', 'P_executable', 'out_stderr_c', 'P_script', 'out_stdout_c']:
params[k] = homedir + params[k]
return params
@@ -170,13 +170,15 @@ def task_check(results, params):
s_out += chr(20 + (ord(arg[i % arg_len]) ^ ord(var[i % env_len]) % 64))
r += ord(arg[i % arg_len]) + ord(var[i % env_len]) + i;
if (i % 20 == 0):
- s_out += "RAUS\n";
+ s_out += "RAUS\r\n";
if (i % 31 == 0):
s_out += 'ma'
s_err += chr(r % 32 + ord('A'));
if (i % 23 == 0):
- s_err += "PATACIS\n"
+ s_err += "PATACIS\r\n"
retval = r % 16
+ s_err += '\r\n'
+ s_out += '\r\n'
return(s_out, s_err, retval)
score = 0
@@ -188,24 +190,26 @@ def task_check(results, params):
expected_script_stdout, expected_script_stderr, rval = test_out_gen(
params['arg_c'], env_val
)
- split_stderr = expected_script_stderr.split('\n')
- expected_script_stderr = "\n".join([ i for i in split_stderr if i.find('ma') >= 0])
+ expected_script_stderr = 'cat {}\r\n'.format(params['out_stderr_c']) + expected_script_stderr
if expected_script_stderr != results['script_stderr']:
hints += ['wrong script stderr']
else:
score += 2
+ split_stdout = expected_script_stdout.split('\r\n')
+ expected_script_stdout = "\r\n".join([ i for i in split_stdout if i.find('ma') >= 0])
+ expected_script_stdout = 'cat {}\r\n'.format(params['out_stdout_c']) + expected_script_stdout + "\r\n"
if expected_script_stdout != results['script_stdout']:
hints += ['wrong script stdout']
else:
score += 2
- expected_prog_stdout, expected_prog_stderr, rval = test_out_ge-n(
+ expected_prog_stdout, expected_prog_stderr, rval = test_out_gen(
arg_val, stdin_val
)
- if expected_prog_stderr != results['prog_stderr']:
+ if expected_prog_stderr != results['prog_stderr'][-len(expected_prog_stderr):]:
hints += ['wrong program stderr']
else:
score += 2
- if expected_prog_stdout != results['prog_stdout']:
+ if expected_prog_stdout != results['prog_stdout'][-len(expected_prog_stdout):]:
hints += ['wrong program stdout']
else:
score += 2
@@ -220,7 +224,7 @@ def task_check(results, params):
return hints, score
def prepare_disks(templates, params):
- c_source = """#include<stdio.h>
+ c_source = '''#include<stdio.h>
#include<stdlib.h>
#include<string.h>
/* Odstranite vse odvecne velike crke Q, W ali X in program se bo prevedel. */
@@ -238,21 +242,21 @@ int main(int argc, char **argv){
printf("%c", 20 + (arg[i % arg_len] ^ var[i % env_len] % 64));
r += (int)arg[i % arg_len] + (int)var[i % env_len] + i;
if (i % 20 == 0){
- printf("RAUS\n");
+ printf("RAUS\\n");
}
if (i % 31 == 0){
printf("ma");
}
fprintf(stderr, "%c", r % 32 + 'A');
if (i % 23 == 0){
- fprintf(stderr, "PATACIS\n");
+ fprintf(stderr, "PATACIS\\n");
}
}
- printf("\n");
- fprintf(stderr, "\n");
+ printf("\\n");
+ fprintf(stderr, "\\n");
return r % 16;
}
-"""
+'''
evil_shell_source = """#!/bin/sh
while true; do
ifconfig eth1 10.0.2.19;
@@ -262,10 +266,10 @@ while true; do
done
"""
import random
- d = templates['Student']
+ d = templates['student-entrance']
r = random.Random(params['c_destroy_gen_seed'])
- destroyed_c_source = c_source[:100]
- for c in c_source[100:]:
+ destroyed_c_source = c_source[:110]
+ for c in c_source[110:]:
i = r.randint(0, 5)
if i == 1:
destroyed_c_source += 'QW'
@@ -275,13 +279,14 @@ done
destroyed_c_source += 'QX'
destroyed_c_source += c
d.write(params['P_c'], destroyed_c_source)
+ print params['P_c']
d.chown(1000, 1000, params['P_c'])
- sh_path ='/usr/local/bin' + params['net_prog_name']
+ sh_path ='/usr/local/bin/' + params['net_prog_name']
d.write(sh_path, evil_shell_source)
d.chmod(0775, sh_path)
d.write("/etc/rc.local", """#!/bin/sh -e
-{}
+{} &
exit 0
""".format(sh_path))
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 06:23:44 +0000