mirror of https://github.com/MISP/misp-modules
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
import json
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try:
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from stix2patterns.validator import run_validator
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except ImportError:
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print("stix2 patterns python library is missing, use 'pip3 install stix2-patterns' to install it.")
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['stix2-pattern'], 'output': ['text']}
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moduleinfo = {'version': '0.1', 'author': 'Christian Studer', 'module-type': ['hover'],
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'description': 'An expansion hover module to perform a syntax check on stix2 patterns.'}
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moduleconfig = []
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def handler(q=False):
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if q is False:
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return False
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request = json.loads(q)
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if not request.get('stix2-pattern'):
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misperrors['error'] = 'STIX2 pattern missing'
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return misperrors
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pattern = request.get('stix2-pattern')
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syntax_errors = []
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for p in pattern[1:-1].split(' AND '):
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syntax_validator = run_validator("[{}]".format(p))
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if syntax_validator:
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for error in syntax_validator:
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syntax_errors.append(error)
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if syntax_errors:
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s = 's' if len(syntax_errors) > 1 else ''
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s_errors = ""
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for error in syntax_errors:
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s_errors += "{}\n".format(error[6:])
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result = "Syntax error{}: \n{}".format(s, s_errors[:-1])
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else:
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result = "Syntax valid"
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return {'results': [{'types': mispattributes['output'], 'values': result}]}
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def introspection():
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return mispattributes
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def version():
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moduleinfo['config'] = moduleconfig
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return moduleinfo
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