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annotate rhodecode/lib/__init__.py @ 1228:73434499fa72

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merges for stable
author Marcin Kuzminski <marcin@python-works.com>
date Sat, 09 Apr 2011 11:22:32 +0200
parents 3d9da7893fdb
children bf263968da47
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1 # -*- coding: utf-8 -*-
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2 """
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3 rhodecode.lib.__init__
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4 ~~~~~~~~~~~~~~~~~~~~~~~
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5
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6 Some simple helper functions
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7
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8 :created_on: Jan 5, 2011
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9 :author: marcink
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10 :copyright: (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>
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11 :license: GPLv3, see COPYING for more details.
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12 """
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13 # This program is free software: you can redistribute it and/or modify
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14 # it under the terms of the GNU General Public License as published by
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15 # the Free Software Foundation, either version 3 of the License, or
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16 # (at your option) any later version.
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17 #
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18 # This program is distributed in the hope that it will be useful,
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19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 # GNU General Public License for more details.
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22 #
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23 # You should have received a copy of the GNU General Public License
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24 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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26
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27 def str2bool(_str):
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28 """
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29 returs True/False value from given string, it tries to translate the
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30 string into boolean
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31
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32 :param _str: string value to translate into boolean
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33 :rtype: boolean
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34 :returns: boolean from given string
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35 """
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36 if _str is None:
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37 return False
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38 if _str in (True, False):
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39 return _str
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40 _str = str(_str).strip().lower()
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41 return _str in ('t', 'true', 'y', 'yes', 'on', '1')
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42
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43
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44 def generate_api_key(username, salt=None):
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45 """
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46 Generates unique API key for given username,if salt is not given
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47 it'll be generated from some random string
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48
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49 :param username: username as string
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50 :param salt: salt to hash generate KEY
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51 :rtype: str
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52 :returns: sha1 hash from username+salt
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53 """
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54 from tempfile import _RandomNameSequence
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55 import hashlib
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56
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57 if salt is None:
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58 salt = _RandomNameSequence().next()
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59
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60 return hashlib.sha1(username + salt).hexdigest()
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61
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62
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63 def safe_unicode(_str, from_encoding='utf8'):
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64 """
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65 safe unicode function. In case of UnicodeDecode error we try to return
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66 unicode with errors replace
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67
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68 :param _str: string to decode
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69 :rtype: unicode
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70 :returns: unicode object
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71 """
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72
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73 if isinstance(_str, unicode):
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74 return _str
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75
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76 try:
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77 u_str = unicode(_str, from_encoding)
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78 except UnicodeDecodeError:
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79 u_str = unicode(_str, from_encoding, 'replace')
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80
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81 return u_str