import json from pyzbar import pyzbar import cv2 import re import binascii import np misperrors = {'error': 'Error'} mispattributes = {'input': ['attachment'], 'output': ['url', 'btc']} moduleinfo = {'version': '0.1', 'author': 'Sascha Rommelfangen', 'description': 'QR code decoder', 'module-type': ['expansion', 'hover']} debug = True debug_prefix = "[DEBUG] QR Code module: " # format example: bitcoin:1GXZ6v7FZzYBEnoRaG77SJxhu7QkvQmFuh?amount=0.15424 # format example: http://example.com cryptocurrencies = ['bitcoin'] schemas = ['http://', 'https://', 'ftp://'] moduleconfig = [] def handler(q=False): if q is False: return False q = json.loads(q) filename = q['attachment'] try: img_array = np.frombuffer(binascii.a2b_base64(q['data']), np.uint8) except Exception as e: err = "Couldn't fetch attachment (JSON 'data' is empty). Are you using the 'Query enrichment' action?" misperrors['error'] = err print(err) print(e) return misperrors image = cv2.imdecode(img_array, cv2.IMREAD_COLOR) if q: barcodes = pyzbar.decode(image) for item in barcodes: try: result = item.data.decode() except Exception as e: print(e) return if debug: print(debug_prefix + result) for item in cryptocurrencies: if item in result: try: currency, address, extra = re.split(r'\:|\?', result) except Exception as e: print(e) if currency in cryptocurrencies: try: amount = re.split('=', extra)[1] if debug: print(debug_prefix + address) print(debug_prefix + amount) return {'results': [{'types': ['btc'], 'values': address, 'comment': "BTC: " + amount + " from file " + filename}]} except Exception as e: print(e) else: print(address) for item in schemas: if item in result: try: url = result if debug: print(debug_prefix + url) return {'results': [{'types': ['url'], 'values': url, 'comment': "from QR code of file " + filename}]} except Exception as e: print(e) else: try: return {'results': [{'types': ['text'], 'values': result, 'comment': "from QR code of file " + filename}]} except Exception as e: print(e) misperrors['error'] = "Couldn't decode QR code in attachment." return misperrors def introspection(): return mispattributes def version(): moduleinfo['config'] = moduleconfig return moduleinfo