Package pywurfl :: Package algorithms :: Package wurfl :: Module utils
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Source Code for Module pywurfl.algorithms.wurfl.utils

  1  # pywurfl - Wireless Universal Resource File Tools in Python 
  2  # Copyright (C) 2006-2011 Armand Lynch 
  3  # 
  4  # This library is free software; you can redistribute it and/or modify it 
  5  # under the terms of the GNU Lesser General Public License as published by the 
  6  # Free Software Foundation; either version 2.1 of the License, or (at your 
  7  # option) any later version. 
  8  # 
  9  # This library is distributed in the hope that it will be useful, but WITHOUT 
 10  # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 
 11  # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 
 12  # details. 
 13  # 
 14  # You should have received a copy of the GNU Lesser General Public License 
 15  # along with this library; if not, write to the Free Software Foundation, Inc., 
 16  # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 17  # 
 18  # Armand Lynch <lyncha@users.sourceforge.net> 
 19   
 20  __doc__ = """ 
 21  This module contains the supporting classes for the Two Step Analysis user agent 
 22  algorithm that is used as the primary way to match user agents with the Java API 
 23  for the WURFL. 
 24   
 25  A description of the way the following source is intended to work can be found 
 26  within the source for the original Java API implementation here: 
 27  http://sourceforge.net/projects/wurfl/files/WURFL Java API/ 
 28   
 29  The original Java code is GPLd and Copyright (c) WURFL-Pro srl 
 30  """ 
 31   
 32  __author__ = "Armand Lynch <lyncha@users.sourceforge.net>" 
 33  __copyright__ = "Copyright 2011, Armand Lynch" 
 34  __license__ = "LGPL" 
 35  __url__ = "http://celljam.net/" 
 36  __version__ = "1.2.1" 
 37   
 38  from functools import partial 
 39   
 40  mobile_browsers = [u"cldc", u"symbian", u"midp", u"j2me", u"mobile", 
 41                     u"wireless", u"palm", u"phone", u"pocket pc", 
 42                     u"pocketpc", u"netfront", u"bolt", u"iris", u"brew", 
 43                     u"openwave", u"windows ce", u"wap2", u"android", 
 44                     u"opera mini", u"opera mobi", u"maemo", u"fennec", 
 45                     u"blazer", u"160x160", u"tablet", u"webos", u"sony", 
 46                     u"nintendo", u"480x640", u"aspen simulator", 
 47                     u"up.browser", u"up.link", u"embider", u"danger hiptop", 
 48                     u"obigo", u"foma"] 
 49   
 50  desktop_browsers = [u"slcc1", u".net clr", u"trident/4", u"media center pc", 
 51                      u"funwebproducts", u"macintosh", u"wow64", u"aol 9.", 
 52                      u"america online browser", u"googletoolbar"] 
 53   
 54   
55 -def is_typeof_browser(user_agent, browsers=None):
56 if browsers is None: 57 return False 58 59 user_agent = user_agent.lower() 60 61 for b in browsers: 62 if b in user_agent: 63 return True 64 return False
65 66 67 is_mobile_browser = partial(is_typeof_browser, browsers=mobile_browsers) 68 is_desktop_browser = partial(is_typeof_browser, browsers=desktop_browsers) 69 70
71 -def ordinal_index(target, needle=u" ", ordinal=1, start_index=0):
72 index = -1 73 74 working_target = target[start_index+1:] 75 76 if needle in working_target: 77 i = 0 78 for i, x in enumerate(working_target.split(needle)): 79 if ordinal < 1: 80 break 81 index += len(x) 82 ordinal -= 1 83 index += (i * len(needle)) + start_index + 1 84 index = index - (len(needle) - 1) 85 if ordinal != 0: 86 index = -1 87 return index
88 89
90 -def find_or_length(func, user_agent):
91 value = func(user_agent) 92 if value == -1: 93 value = len(user_agent) 94 return value
95 96
97 -def indexof_or_length(target, needle=u" ", position=1, start_index=0):
98 value = ordinal_index(target, needle, position, start_index) 99 if value == -1: 100 value = len(target) 101 return value
102 103 104 first_space = indexof_or_length 105 first_slash = partial(indexof_or_length, needle=u"/") 106 second_slash = partial(indexof_or_length, needle=u"/", position=2) 107 first_semi_colon = partial(indexof_or_length, needle=u";") 108 third_space = partial(indexof_or_length, position=3) 109