def import_challenges(in_file,
dst_attachments,
exit_on_error=True,
move=False):
from CTFd.models import db, Challenges, Flags, Tags, ChallengeFiles
from CTFd.utils import uploads
chals = []
with open(in_file, 'r') as in_stream:
chals = yaml.safe_load_all(in_stream)
for chal in chals:
skip = False
for req_field in REQ_FIELDS:
if req_field not in chal:
if exit_on_error:
raise MissingFieldError(req_field)
else:
print "Skipping challenge: Missing field '{}'".format(
req_field)
skip = True
break
if skip:
continue
for flag in chal['flags']:
if 'flag' not in flag:
if exit_on_error:
raise MissingFieldError('flag')
else:
print "Skipping flag: Missing field 'flag'"
continue
flag['flag'] = flag['flag'].strip()
if 'type' not in flag:
flag['type'] = "static"
matching_chal = Challenges.query.filter_by(
name=chal['name'].strip()).first()
if matching_chal:
print "Updating {}: Duplicate challenge found in DB (id: {})".format(
chal['name'].encode('utf8'), matching_chal.id)
Tags.query.filter_by(challenge_id=matching_chal.id).delete()
ChallengeFiles.query.filter_by(
challenge_id=matching_chal.id).delete()
Flags.query.filter_by(challenge_id=matching_chal.id).delete()
#Hints.query.filter_by(challenge_id=matching_chal.id).delete()
matching_chal.name = chal['name'].strip()
matching_chal.description = chal['description'].strip()
matching_chal.category = chal['category'].strip()
if chal.get('type', 'standard') == 'standard':
matching_chal.value = chal['value']
db.session.commit()
chal_dbobj = matching_chal
else:
print "Adding {}".format(chal['name'].encode('utf8'))
chal_type = chal.get('type', 'standard')
if chal_type == 'standard':
# We ignore traling and leading whitespace when importing challenges
chal_dbobj = Challenges(
name=chal['name'].strip(),
description=chal['description'].strip(),
value=chal['value'],
category=chal['category'].strip(),
)
elif chal_type == 'dynamic':
from CTFd.plugins.dynamic_challenges import DynamicChallenge
# We ignore traling and leading whitespace when importing challenges
chal_dbobj = DynamicChallenge(
name=chal['name'].strip(),
description=chal['description'].strip(),
category=chal['category'].strip(),
value=int(chal['value']),
minimum=int(chal['minimum']),
decay=int(chal['decay']),
)
else:
raise ValueError('Unknown type of challenge')
db.session.add(chal_dbobj)
db.session.commit()
for tag in chal.get('tags', []):
tag_dbobj = Tags(challenge_id=chal_dbobj.id, value=tag)
db.session.add(tag_dbobj)
for flag in chal['flags']:
flag_db = Flags(challenge_id=chal_dbobj.id,
content=flag['flag'],
type=flag['type'])
db.session.add(flag_db)
prerequisites = set()
for prerequisite in chal.get('prerequisites', []):
prerequisites.update([
c.id for c in Challenges.query.filter_by(
name=prerequisite).all()
])
chal_dbobj.requirements = {'prerequisites': list(prerequisites)}
if 'files' in chal:
from io import FileIO
for filename in chal['files']:
# upload_file takes a werkzeug.FileStorage object, but we can get close enough
# with a file object with a filename property added
filepath = os.path.join(os.path.dirname(in_file), filename)
with FileIO(filepath, mode='rb') as f:
f.filename = os.path.basename(f.name)
uploads.upload_file(file=f,
challenge=chal_dbobj.id,
type='challenge')
db.session.commit()
db.session.close()
def import_challenges(in_file, dst_attachments, move=False):
from CTFd.models import db, Challenges, Flags, Tags, ChallengeFiles, Hints
from CTFd.utils import uploads
from CTFd.plugins.dynamic_challenges import DynamicChallenge, DynamicValueChallenge
with open(in_file, "r") as in_stream:
data = list(yaml.safe_load_all(in_stream))
if len(data) == 0 or data[0] is None or "challs" not in data[
0] or data[0]["challs"] is None:
raise ValueError("Invalid YAML format. Missing field 'challs'.")
for chal in data[0]["challs"]:
for req_field in REQ_FIELDS:
if req_field not in chal:
raise ValueError(
"Invalid YAML format. Missing field '{0}'.".format(
req_field))
if chal.get("type", "standard") == "dynamic":
for req_field in ["minimum", "decay"]:
if req_field not in chal:
raise ValueError(
"Invalid YAML format. Missing field '{0}'.".format(
req_field))
if chal["flags"] is None:
raise ValueError("Invalid YAML format. Missing field 'flag'.")
for flag in chal["flags"]:
if "flag" not in flag:
raise ValueError(
"Invalid YAML format. Missing field 'flag'.")
flag["flag"] = flag["flag"].strip()
if "type" not in flag:
flag["type"] = "static"
matching_chal = Challenges.query.filter_by(
name=chal["name"].strip()).first()
if matching_chal:
print(("Updating {}: Duplicate challenge "
"found in DB (id: {})").format(
chal["name"].encode("utf8"), matching_chal.id))
Tags.query.filter_by(challenge_id=matching_chal.id).delete()
ChallengeFiles.query.filter_by(
challenge_id=matching_chal.id).delete()
Flags.query.filter_by(challenge_id=matching_chal.id).delete()
Hints.query.filter_by(challenge_id=matching_chal.id).delete()
matching_chal.name = chal["name"].strip()
matching_chal.description = chal["description"].strip()
matching_chal.category = chal["category"].strip()
if chal.get("type", "standard") == "standard":
matching_chal.value = chal["value"]
if chal.get("type", "standard") == "dynamic":
matching_chal.minimum = chal["minimum"]
matching_chal.decay = chal["decay"]
matching_chal.initial = chal["value"]
DynamicValueChallenge.calculate_value(matching_chal)
db.session.commit()
chal_dbobj = matching_chal
else:
print("Adding {}".format(chal["name"].encode("utf8")))
chal_type = chal.get("type", "standard")
if chal_type == "standard":
# We ignore traling and leading whitespace when
# importing challenges
chal_dbobj = Challenges(
name=chal["name"].strip(),
description=chal["description"].strip(),
value=chal["value"],
category=chal["category"].strip(),
)
elif chal_type == "dynamic":
# We ignore traling and leading whitespace when
# importing challenges
chal_dbobj = DynamicChallenge(
name=chal["name"].strip(),
description=chal["description"].strip(),
category=chal["category"].strip(),
value=int(chal["value"]),
minimum=int(chal["minimum"]),
decay=int(chal["decay"]),
)
else:
raise ValueError("Unknown type of challenge")
db.session.add(chal_dbobj)
db.session.commit()
for tag in chal.get("tags", []):
tag_dbobj = Tags(challenge_id=chal_dbobj.id, value=tag)
db.session.add(tag_dbobj)
for flag in chal["flags"]:
flag_db = Flags(challenge_id=chal_dbobj.id,
content=flag["flag"],
type=flag["type"])
db.session.add(flag_db)
for hint in chal.get("hints", []):
hint_dbobj = Hints(challenge_id=chal_dbobj.id,
content=hint["content"],
cost=hint["cost"])
db.session.add(hint_dbobj)
chal_dbobj.state = "hidden" if (
"hidden" in chal and chal["hidden"] == True) else "visible"
chal_dbobj.max_attempts = chal[
"max_attempts"] if "max_attempts" in chal else 0
if "files" in chal:
from io import FileIO
for filename in chal["files"]:
try:
# upload_file takes a werkzeug.FileStorage object, but we
# can get close enough with a file object with a
# filename property added
filepath = os.path.join(os.path.dirname(in_file),
filename)
with FileIO(filepath, mode="rb") as f:
f.filename = os.path.basename(f.name)
uploads.upload_file(file=f,
challenge=chal_dbobj.id,
type="challenge")
except FileNotFoundError:
raise ValueError(
"Unable to import challenges. Missing file: " +
filename)
db.session.commit()
# update challenge prerequisites after all the challenges were created
with open(in_file, "r") as in_stream:
data = list(yaml.safe_load_all(in_stream))
for chal in data[0]["challs"]:
chal_dbobj = Challenges.query.filter_by(
name=chal["name"].strip()).first()
prerequisites = set()
for prerequisite in chal.get("prerequisites", []):
prerequisites.update([
c.id for c in Challenges.query.filter_by(
name=prerequisite).all()
])
chal_dbobj.requirements = {"prerequisites": list(prerequisites)}
db.session.commit()
db.session.close()