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# -*- coding: utf-8 -*- |
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2
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10 |
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from __future__ import absolute_import, unicode_literals |
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3
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10 |
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4
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10 |
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import base64 |
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5
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10 |
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import copy |
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6
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import hashlib |
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7
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import socket |
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8
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9
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import six |
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10
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11
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from wechatpy.utils import to_binary, to_text |
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12
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10 |
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13
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10 |
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14
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10 |
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def format_url(params, api_key=None): |
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data = [to_binary('{0}={1}'.format(k, params[k])) for k in sorted(params) if params[k]] |
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if api_key: |
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data.append(to_binary('key={0}'.format(api_key))) |
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return b"&".join(data) |
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10 |
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20
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10 |
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21
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10 |
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def calculate_signature(params, api_key): |
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url = format_url(params, api_key) |
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return to_text(hashlib.md5(url).hexdigest().upper()) |
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10 |
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25
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def _check_signature(params, api_key): |
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_params = copy.deepcopy(params) |
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sign = _params.pop('sign', '') |
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return sign == calculate_signature(_params, api_key) |
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30
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10 |
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31
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10 |
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32
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10 |
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def dict_to_xml(d, sign): |
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33
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xml = ['<xml>\n'] |
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10 |
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for k in sorted(d): |
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# use sorted to avoid test error on Py3k |
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v = d[k] |
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if isinstance(v, six.integer_types) or (isinstance(v, six.string_types) and v.isdigit()): |
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xml.append('<{0}>{1}</{0}>\n'.format(to_text(k), to_text(v))) |
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else: |
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40
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xml.append( |
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10 |
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'<{0}><![CDATA[{1}]]></{0}>\n'.format(to_text(k), to_text(v)) |
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) |
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xml.append('<sign><![CDATA[{0}]]></sign>\n</xml>'.format(to_text(sign))) |
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return ''.join(xml) |
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45
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10 |
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46
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10 |
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47
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10 |
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def get_external_ip(): |
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48
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10 |
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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49
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10 |
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try: |
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50
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wechat_ip = socket.gethostbyname('api.mch.weixin.qq.com') |
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sock.connect((wechat_ip, 80)) |
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addr, port = sock.getsockname() |
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sock.close() |
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54
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return addr |
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55
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except socket.error: |
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return '127.0.0.1' |
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57
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58
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59
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def rsa_encrypt(data, pem): |
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60
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""" |
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61
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加密 |
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62
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:param data: 待加密字符串 |
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63
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:param pem: RSA key 内容 |
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64
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:return: |
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65
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""" |
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66
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encoded_data = data.encode() if not isinstance(data, bytes) else data |
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67
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try: |
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68
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from Crypto.PublicKey import RSA |
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69
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from Crypto.Cipher import PKCS1_OAEP |
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70
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rsakey = RSA.importKey(pem) |
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71
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cipher = PKCS1_OAEP.new(rsakey) |
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72
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encrypted_data = cipher.encrypt(encoded_data) |
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73
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except ModuleNotFoundError: |
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74
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from cryptography.hazmat.backends import default_backend |
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75
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from cryptography.hazmat.primitives import serialization |
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76
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from cryptography.hazmat.primitives import hashes |
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77
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from cryptography.hazmat.primitives.asymmetric import padding |
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78
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79
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private_key = serialization.load_pem_private_key(pem, password=None, backend=default_backend()) |
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80
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encrypted_data = private_key.sign( |
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81
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data=encoded_data, |
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82
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padding=padding.OAEP( |
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83
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mgf=padding.MGF1(hashes.SHA1()), |
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84
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algorithm=hashes.SHA1(), |
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85
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label=None, |
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86
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), |
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87
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algorithm=hashes.SHA1() |
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88
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) |
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89
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except ModuleNotFoundError: |
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90
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raise ModuleNotFoundError('either crypto or cryptography is required') |
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91
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return base64.b64encode(encrypted_data).decode() |
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92
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jxtech /
wechatpy
