def _validate_time_limit(self, value):
if value < CodeQuiz.TL_MIN:
raise FormatError("Time Limit should be at least {}".format(
CodeQuiz.TL_MIN))
if value > CodeQuiz.TL_MAX:
raise FormatError("Time Limit should be at most {}".format(
CodeQuiz.TL_MAX))
def _validate_memory_limit(self, value):
if value < CodeQuiz.ML_MIN:
raise FormatError("Memory Limit should be at least {}".format(
CodeQuiz.ML_MIN))
if value > CodeQuiz.ML_MAX:
raise FormatError("Memory Limit should be at most {}".format(
CodeQuiz.ML_MAX))
def clean_reply(self, reply, dataset):
solve_sql = reply.solve_sql.strip()
if not solve_sql:
raise FormatError("Empty query")
if len(sqlparse.split(solve_sql)) > 1:
raise FormatError("Only one query is allowed")
return solve_sql
def clean_reply(self, reply, dataset):
choices = reply.choices
if len(choices) != len(dataset.options):
raise FormatError('Reply has the wrong length')
if not self.is_multiple_choice and sum(choices) != 1:
raise FormatError('Only one choice should be `true`')
return choices
def __init__(self, source):
super().__init__(source)
self.columns = source.columns
self.rows = source.rows
self.description = source.description
self.options = source.options
self.is_always_correct = source.is_always_correct
for row in self.rows:
possible_answer = 0
for cell in row.columns:
possible_answer += cell.choice
if possible_answer > 1 and not self.options.is_checkbox:
raise FormatError(
"There cannot be multiple right answers in this mode")
if possible_answer == 0 and not self.options.is_checkbox \
and not self.is_always_correct:
raise FormatError(
"There are no right answers for '{0}'".format(row.name))
for i, j in itertools.combinations(range(len(self.rows)), 2):
if self.rows[i].name == self.rows[j].name:
raise FormatError("There are two rows with the same name "
"'{0}'".format(self.rows[i].name))
for i, j in itertools.combinations(range(len(self.columns)), 2):
if self.columns[i].name == self.columns[j].name:
raise FormatError("There are two columns with the same name "
"'{0}'".format(self.columns[i].name))
def __init__(self, source):
super().__init__(source)
self.options = source.options
if not self.options:
raise FormatError("Empty options")
if len(set(self.options)) != len(self.options):
raise FormatError("Ambiguous options")
def _rnr_create_task(self, task_title):
"""Create new task on rootnroll platform."""
try:
r = requests.post('{0}/tasks'.format(self.rnr_api_url),
data={'title': task_title})
if r.status_code != 201:
raise FormatError("Cannot create new task on rnr platform")
except requests.exceptions.RequestException as e:
raise FormatError(e)
def __init__(self, source):
super().__init__(source)
self.is_equation = False
left_expr, arrow, right_expr = split_on_arrow(self.source.expression)
if arrow:
self.is_equation = True
if not self._is_valid_expression(self.source.expression, self.is_equation):
raise FormatError("Chemical expression is invalid")
if not self._is_valid_template(self.source.template):
raise FormatError("Chemical template is invalid")
def __init__(self, source):
super().__init__(source)
if not source.options:
raise FormatError("At least one answer option should be provided")
self.options = [{
'answer': parse_decimal(o.answer, 'answer'),
'max_error': parse_decimal(o.max_error, 'max_error')
} for o in source.options]
if any(o['max_error'] < 0 for o in self.options):
raise FormatError("`max_error` should be non-negative")
def async_init(self):
try:
_, clue = self.generate()
except InitSqlError as e:
raise FormatError("Init SQL script failed:\n" +
MYSQL_ERROR.format(e.args[0], e.args[1]))
score, hint = self.check(self.source.solve_sql, clue)
if not score:
raise FormatError(
"The challenge is broken. Please verify your solution "
"query and check code.\n" + hint)
def __init__(self, source):
super().__init__(source)
if len(source.studio_save) != 1:
raise FormatError("TRIK Studio save file is not selected")
if source.fields_archive:
content = attachment_content(source.fields_archive[0])
content_reader = io.BytesIO(content)
try:
zipfile.ZipFile(content_reader)
except zipfile.BadZipFile:
raise FormatError("Fields archive is not a valid zip file")
def clean_reply(self, reply, dataset):
"""Checks that reply is valid and transforms it before `check`."""
# `choices` and `dataset` are parsed.
# Make sure that they have the same length and that exactly one choice is correct.
choices = reply.choices
if len(choices) != len(dataset.options):
raise FormatError("Reply has a wrong length")
if choices.count(True) != 1:
raise FormatError("Reply has more than one choice")
return choices
def _rnr_task_id(self, task_title):
"""Get rootnroll task id by task title."""
try:
r = requests.get('{0}/tasks/{1}'.format(self.rnr_api_url,
task_title))
except requests.exceptions.RequestException as e:
raise FormatError(e)
if r.status_code == 200:
return r.json()['id']
elif r.status_code == 404:
return None
raise FormatError("Internal error in rnr platform")
def clean_reply(self, reply, dataset):
if len(reply.solution) != 1:
raise FormatError("The reply should contain a solution.c file")
if self.source.is_makefile_required and len(reply.makefile) != 1:
raise FormatError("The reply should contain a Makefile file")
clean_reply = {
'solution':
reply.solution[0]._original,
'makefile':
reply.makefile[0]._original
if self.source.is_makefile_required else None,
}
return clean_reply
def _validate_source(self):
if self.samples_count < 0:
raise FormatError("Number of sample tests should be non-negative")
self._validate_time_limit(self.execution_time_limit)
for manual_time_limit in self.source.manual_time_limits:
self._validate_language(manual_time_limit.language)
self._validate_time_limit(manual_time_limit.time)
self._validate_memory_limit(self.execution_memory_limit)
for manual_memory_limit in self.source.manual_memory_limits:
self._validate_language(manual_memory_limit.language)
self._validate_memory_limit(manual_memory_limit.memory)
if len(self.source.test_archive) > 1:
raise FormatError("Number of test archives should be at most 1")
def __init__(self, source):
super().__init__(source)
self.preserve_firsts_order = source.preserve_firsts_order
self.pairs = source.pairs
if not self.pairs:
raise FormatError("Empty pairs")
first_parts = [pair.first for pair in self.pairs]
nonblank_second_parts = [
pair.second for pair in self.pairs if pair.second
]
if (len(first_parts) != len(set(first_parts)) or
len(nonblank_second_parts) != len(set(nonblank_second_parts))):
raise FormatError("Ambiguous pairs")
def check_random():
try:
dataset, clue = self.generate()
reply = self.run_edyrun(
'solve',
data=dataset,
output_limit=settings.DATASET_QUIZ_SIZE_LIMIT)
score, hint = self.check(reply, clue, throw=True)
except JailedCodeFailed as e:
raise FormatError(str(e))
if score != 1:
hint = '\nHint: {}'.format(hint) if hint else ''
raise FormatError(
'score of answer is {score} instead of 1.{hint}'.format(
score=score, hint=hint))
def __init__(self, source):
super().__init__(source)
self.is_multiple_choice = source.is_multiple_choice
self.is_always_correct = source.is_always_correct
self.sample_size = source.sample_size
self.preserve_order = source.preserve_order
self.options = source.options
if self.is_always_correct:
if self.sample_size > len(self.options):
raise FormatError('Sample size is greater then the number of available options')
else:
min_correct, max_correct = self.get_min_max_correct()
if min_correct > max_correct:
raise FormatError('Not enough answers')
def async_init(self):
samples = []
try:
tests = self.get_tests()
dataset, output = self.run_edyrun('sample')
if not dataset:
# samples from generate function
for i in range(min(self.samples_count, len(tests))):
dataset, clue = tests[i]
output = self.run_edyrun('solve', data=dataset)
samples.append((dataset, output))
else:
# samples from tests list
samples.append((dataset, output))
except JailedCodeFailed as e:
raise FormatError(str(e))
return {
'tests': tests,
'options': {
'execution_time_limit': self.execution_time_limit,
'execution_memory_limit': self.execution_memory_limit,
'limits': self.limits,
'code_templates': {
lang: temp[Directives.CODE]
for lang, temp in self.code_templates.items()
},
'samples': samples,
},
'warnings': self._generate_warnings(tests),
}
def _check_learner_query_result(self, query, result, clue):
check_code = textwrap.dedent("""
import MySQLdb
db = MySQLdb.connect(host='{host}',
port={port},
user='******',
passwd='{passwd}',
db='{db}')
cursor = db.cursor()
def generate():
pass
def solve(dataset):
pass
{teacher_check}
""").format(host=settings.SQL_DB_HOST,
port=settings.SQL_BIND_PORT,
user=clue['db_user'],
passwd=clue['db_pass'],
db=clue['db_name'],
teacher_check=self.source.check_code)
try:
return run('score', check_code, data=(query, result))
except JailedCodeFailed as e:
raise FormatError(str(e))
def clean_reply(self, reply, dataset):
if len(reply.files) > 1:
raise FormatError("More than one file is submitted")
# TODO: Add file content normalization here after download links on attachments in
# reply is implemented. Currently normalization is performed only on check. Learners
# download their original attached files.
return reply
def __init__(self, source):
super().__init__(source)
self.pattern = source.pattern
self.case_sensitive = source.case_sensitive
self.use_re = source.use_re
self.match_substring = source.match_substring
if self.use_re:
try:
r = re.compile(self.pattern)
# catching Exception and not re.error because compile can throw
# not only re.error (ex pattern = '()'*100)
except Exception:
raise FormatError('Malformed regular expression')
if r.match(''):
raise FormatError('Pattern matches empty sting')
def parse_decimal(s, filed_name):
for old, new in NUMBER_REPLACEMENTS:
s = s.replace(old, new)
try:
return decimal.Decimal(s)
except decimal.DecimalException:
raise FormatError("Field `{}` should be a number".format(filed_name))
def async_init(self):
if self.use_code:
try:
answer = self.run_edyrun('solve', data={})
except JailedCodeFailed as e:
raise FormatError(str(e))
reply = {
'text': answer,
'files': [],
}
score, hint = self.check(reply, '', throw=True)
if score != 1:
hint = '\nHint: {}'.format(hint) if hint else ''
raise FormatError(
'score of answer is {score} instead of 1.{hint}'.format(
score=score, hint=hint))
return None
def __init__(self, source):
super().__init__(source)
self.answer = source.answer
if not self.answer.strip():
raise FormatError('Correct answer should be non-empty')
parse_float = lambda name: float(parse_decimal(getattr(source.numerical_test, name),
'numerical_test.{}'.format(name)))
self.z_re_min = parse_float('z_re_min')
self.z_re_max = parse_float('z_re_max')
self.z_im_min = parse_float('z_im_min')
self.z_im_max = parse_float('z_im_max')
self.max_error = parse_float('max_error')
self.integer_only = source.numerical_test.integer_only
if self.z_re_min > self.z_re_max:
raise FormatError('Incorrect Re z')
if self.z_im_min > self.z_im_max:
raise FormatError('Incorrect Im z')
if self.max_error < 0:
raise FormatError('Incorrect tolerated absolute error')
def get_tests(self):
tests = self.run_edyrun("generate", seed=random.randrange(10**6))
tests.extend(self.generate_tests(self.zip_archive))
if not isinstance(tests, collections.Sequence):
raise FormatError("Generate should return a Sequence")
if len(tests) > 100:
raise FormatError("Too many tests (should be <= 100 tests)")
if len(tests) == 0:
raise FormatError("Empty test sequence (should be > 0 test)")
for element in tests:
if not (isinstance(element, collections.Sequence)
and len(element) == 2):
raise FormatError("Test format is wrong")
dataset, clue = element
if not (isinstance(dataset, str)):
raise FormatError("Test format is wrong")
for dataset, clue in tests:
msg = "{}\ndataset: {}\nclue: {}\nreply: {}\nresult: {}\nhint: {}"
reply = self.run_edyrun('solve', data=dataset)
result = self.score_one_test(reply, clue, throw=True)
if result[0] != 1:
raise FormatError(
msg.format("Test is broken", dataset, clue, reply,
*result))
return tests
def __init__(self, source):
"""Initializes quiz instance from parsed source and raises `FormatError` if source is invalid."""
super().__init__(source)
# `source` is parsed, that is, it is an object with `options` field, and not a dict.
self.options = source.options
correct_options = [
option for option in self.options if option.is_correct
]
# Can't check via Schemas.source that there is exactly one correct option,
# so do it here.
if len(correct_options) != 1:
raise FormatError("Exactly one option must be correct")
def _check_bootstrap_script(self, script):
with tempfile.NamedTemporaryFile(prefix='bootstrap-',
suffix='.sh',
mode='w',
encoding='utf-8') as tf:
tf.file.write(script)
tf.flush()
proc = subprocess.Popen(['/bin/bash', '-n', tf.name],
stderr=subprocess.PIPE)
try:
_, stderr = proc.communicate(timeout=5)
except subprocess.TimeoutExpired:
try:
proc.kill()
except ProcessLookupError:
pass
raise FormatError("Cannot check bootstrap script syntax, "
"took too much time")
if proc.returncode != 0:
msg = "Syntax error in bootstrap script:\n\n{0}".format(
stderr.decode(errors='replace'))
raise FormatError(msg)
def async_init(self):
r = requests.get(RNR_IMAGE_URL.format(image_id=self.image_id),
auth=RNR_AUTH,
timeout=DEFAULT_TIMEOUT)
if r.status_code != 200:
if r.status_code == 404:
raise FormatError("Image not found with ID: {}".format(
self.image_id))
raise PluginError("Internal server error: failed to connect to "
"backend which serves virtual machines")
if self.memory > MAX_MEMORY_LIMIT:
raise FormatError("Maximum value for memory limit is {} MB".format(
MAX_MEMORY_LIMIT))
if self.memory < MIN_MEMORY_LIMIT:
raise FormatError("Minimum value for memory limit is {} MB".format(
MIN_MEMORY_LIMIT))
# Check bootstrap script syntax
self._check_bootstrap_script(self.bootstrap_script)
# Check pytest scenario (try to collect tests, but don't execute them)
test_filename = 'test_scenario.py'
pytest_files = [(self.test_scenario, test_filename)]
pytest_argv = ['-m', 'pytest', '-s', '--collect-only', test_filename]
result = jail_code_wrapper('python',
code=None,
files=pytest_files,
argv=pytest_argv,
stdin=None)
if result.status != 0:
output = result.stdout.decode(errors='replace')
errput = result.stderr.decode(errors='replace')
if errput:
msg = ("Internal error while checking test scenario "
"correctness:\n\n{0}{1}".format(output, errput))
logger.error(msg)
raise PluginError(msg)
msg = "Test scenario code contains errors:\n\n{0}".format(output)
raise FormatError(msg)
return {'options': {'time_limit': 60 * 60}}
def __init__(self, source):
super().__init__(source)
if any(comp.type not in ComponentType.all
for comp in self.source.components):
raise FormatError("Invalid component type")
self.blanks = [
comp for comp in self.source.components
if comp.type != ComponentType.TEXT
]
if not self.blanks:
raise FormatError(
"The problem should contain at least one blank block")
for component in self.source.components:
if component.type != ComponentType.TEXT:
continue
text = component.text
component.text = clean_html(component.text, strip=False)
is_incorrect_html = lambda a, b: component.text.replace(
a, b).count(b) != text.count(b)
if is_incorrect_html('>', '>') or is_incorrect_html(
'<', '<'):
raise FormatError('Incorrect html: {}'.format(text))