Mercurial > kallithea

annotate rhodecode/model/license.py @ 4116:ffd45b185016 rhodecode-2.2.5-gpl

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Imported some of the GPLv3'd changes from RhodeCode v2.2.5. This imports changes between changesets 21af6c4eab3d and 6177597791c2 in RhodeCode's original repository, including only changes to Python files and HTML. RhodeCode clearly licensed its changes to these files under GPLv3 in their /LICENSE file, which states the following: The Python code and integrated HTML are licensed under the GPLv3 license. (See: https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE or http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE for an online copy of that LICENSE file) Conservancy reviewed these changes and confirmed that they can be licensed as a whole to the Kallithea project under GPLv3-only. While some of the contents committed herein are clearly licensed GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the statement above from RhodeCode indicates that they intend GPLv3-only as their license, per GPLv3ยง14 and other relevant sections of GPLv3.
author Bradley M. Kuhn <bkuhn@sfconservancy.org>
date Wed, 02 Jul 2014 19:03:13 -0400
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4116
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1 # -*- coding: utf-8 -*-
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2 # This program is free software: you can redistribute it and/or modify
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3 # it under the terms of the GNU General Public License as published by
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4 # the Free Software Foundation, either version 3 of the License, or
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5 # (at your option) any later version.
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6 #
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7 # This program is distributed in the hope that it will be useful,
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8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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10 # GNU General Public License for more details.
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11 #
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12 # You should have received a copy of the GNU General Public License
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13 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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14 """
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15 rhodecode.model.license
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16 ~~~~~~~~~~~~~~~~~~~~~~~
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17
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18 Model for licenses
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19
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20
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21 :created_on: Aug 1, 2013
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22 :author: marcink
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23 :copyright: (c) 2013 RhodeCode GmbH.
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24 :license: GPLv3, see LICENSE for more details.
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25 """
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26
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27 import uuid
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28 import base64
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29 import time
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30 import logging
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31 import traceback
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32
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33 from Crypto import Random
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34 from Crypto.Cipher import AES
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35
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36 import rhodecode
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37 from rhodecode.lib.compat import json
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38 from rhodecode.model import BaseModel
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39 from rhodecode.model.db import RhodeCodeSetting
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40
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41 log = logging.getLogger(__name__)
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42
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43 BLOCK_SIZE = 32
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44
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45
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46 def pad(s):
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47 return (s + (BLOCK_SIZE - len(s) % BLOCK_SIZE) *
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48 chr(BLOCK_SIZE - len(s) % BLOCK_SIZE))
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49
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50
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51 def unpad(s):
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52 return s[0:-ord(s[-1])]
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53
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54
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55 class LicenseModel(BaseModel):
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56
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57 cls = RhodeCodeSetting
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58
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59 def __init__(self, sa=None, key=None):
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60 super(LicenseModel, self).__init__(sa=sa)
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61 if not key:
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62 key = rhodecode.CONFIG.get('license_token')
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63
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64 if not key:
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65 raise TypeError('Missing encryption key: %s' % key)
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66 if not isinstance(key, basestring):
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67 raise TypeError('Encryption key is bad type, got %s '
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68 'expected basestring' % type(key))
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69 #strip dashes
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70 self.key = key.replace('-', '')
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71
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72 @classmethod
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73 def generate_license_token(cls):
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74 tok_len = 4
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75 hex_token = uuid.uuid1().hex
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76 num_pools = [hex_token[start:start+tok_len]
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77 for start in range(0, len(hex_token), tok_len)]
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78 return u'-'.join(num_pools[:4])
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79
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80 @classmethod
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81 def get_default_license(cls):
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82
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83 key = 'abra-cada-bra1-rce3'
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84 enc_license_key = ('''
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85 0HBgVSMJgapshyHBZGiSj/pqSLkO8BmkbSnFDw8j+e854FkSJuVyUhIyUSFgs5mJ+P
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86 KGknkw/LOf0pKLRZ7EZiFW+lkrv99UaS395FCp4J+ymdg7YdIdYtc0FZ8TcZjXrV3y
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87 ORR3Klsjf7PUV6XVYSU6CAMx5SyK78n3JwYLclCnog1lD4kwHEFJH+OD5jFG3OT9eN
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88 Kd0c1rVIJbbkPfppVIa4twr52bXWjueOpamdFI7DOJtlse9XyY1axgGNVQDtgRlWi5
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89 YmtP8OfT+Rq9SaCMQzPq3R42/YWHHrG1fhEMO7DAuruyLASoXROAo+hZmDoWYiqOP2
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90 vtJk/vc6WTB0Ro5zBWznFvkvTPzpFNf+A4FlQzQrVLjVOdIKncyJLx7QFHYFWT9ewD
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91 Abr3XpaN5brqe97hDslN/8uKZabUydYI4dKDYkuc5+WAOfPGuqM/CwIPjZQ6K8ivJK
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92 yX3CHBThwQuJtQY85GHPte0fT0bHoQyLIBwwYa76/pdm4eTaUrMZbj2HipDGTRO6BU
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93 DaDIdw5YiczQ+Jec5phmqwbJ5Z/uXzdV6dhFLDTaiQ+PSkRLg9F1/cPZZxYOo8Jatn
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94 6pSQvmzi4ALTsaPIGGyu5aazPRB0Wz7g2tyPfUcAP5rzS0aWIdoszsAXizBiJdKgr4
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95 X2SlOqJ3MYfen4rvLbIQwV2IiRJdtv1QoFGAyyGfDtGzYruZbpfQcouhwRJbaESTwB
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96 0WXMa73Q2jw59GiTB5C4U=''')
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97 return json.loads(LicenseModel(key=key).decrypt(enc_license_key))
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98
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99 @classmethod
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100 def get_license_info(cls, license_token, enc_license_key, safe=True,
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101 fill_defaults=False):
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102 license_info = {}
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103 if fill_defaults:
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104 license_info = cls.get_default_license()
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105 try:
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106 if license_token and enc_license_key:
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107 license_info = json.loads(
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108 LicenseModel(key=license_token).decrypt(enc_license_key))
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109 except Exception, e:
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110 log.error(traceback.format_exc())
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111 if not safe:
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112 raise
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113 return license_info
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114
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115 @classmethod
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116 def get_license_key(cls):
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117 defaults = RhodeCodeSetting.get_app_settings()
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118 return defaults.get('rhodecode_license_key')
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119
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120 def encrypt(self, text, key=None):
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121 if not isinstance(text, basestring):
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122 raise TypeError('Encrypt can only work on unicode or '
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123 'string, got %s' % type(text))
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124 if not key:
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125 key = self.key
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126 padded_text = pad(text)
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127 IV = Random.new().read(AES.block_size)
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128 cipher = AES.new(key, AES.MODE_CBC, IV)
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129 return base64.b64encode(IV + cipher.encrypt(padded_text))
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130
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131 def decrypt(self, enc_text, key=None):
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132 if not isinstance(enc_text, (unicode, str)):
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133 raise TypeError('Encrypt can only work on unicode or '
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134 'string, got %s' % type(enc_text))
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135 if not key:
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136 key = self.key
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137 enc = base64.b64decode(enc_text)
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138 iv = enc[:16] # iv is stored
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139 cipher = AES.new(key, AES.MODE_CBC, iv)
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140 return unpad(cipher.decrypt(enc[16:]))
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141
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142 def generate_signature(self, license_key, sig_key):
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143 copy = license_key.copy()
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144 del copy['signature']
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145 return self.encrypt(json.dumps(copy), key=sig_key)
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146
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147 def verify(self, enc_text, sig_key):
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148 if not isinstance(enc_text, basestring):
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149 raise TypeError('Encrypt can only work on unicode or '
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150 'string, got %s' % type(enc_text))
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151
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152 decrypted = json.loads(self.decrypt(enc_text))
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153 try:
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154 signature = json.loads(self.decrypt(decrypted['signature'], sig_key))
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155 except Exception:
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156 signature = '-- decryption error --'
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157
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158 del decrypted['signature']
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159 #TODO: write better diff display
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160 if decrypted != signature:
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161 raise TypeError('Signature mismatch got %s[%s] vs %s[%s]'
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162 % (decrypted, type(decrypted), signature, type(signature)))
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163 return signature