Source Code for Module madrona.common.uaparser.clientos

 1  """ 
 2  Based on http://vaig.be/2009/03/getting-client-os-in-django.html 
 3  """ 
 4   
 5  import re 
 6   
 7 -def client_os(user_agent): 
 8      '''  
 9      Context processor for Django that provides operating system 
10      information base on HTTP user agent. 
11      A user agent looks like (line break added): 
12      "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.6) \ 
13      Gecko/2009020409 Iceweasel/3.0.6 (Debian-3.0.6-1)" 
14      ''' 
15      # Mozilla/5.0 
16      regex = '(?P<application_name>\w+)/(?P<application_version>[\d\.]+)' 
17      regex += ' \(' 
18      # X11 
19      regex += '(?P<compatibility_flag>\w+)' 
20      regex += '; ' 
21      # U  
22      if "U;" in user_agent or "MSIE" in user_agent:   # some UA strings leave out the U; 
23          regex += '(?P<version_token>[\w .]+)' 
24          regex += '; ' 
25      # Linux i686 
26      regex += '(?P<platform_token>[\w ._]+)' 
27      # anything else 
28      regex += '; .*' 
29   
30      result = re.match(regex, user_agent) 
31      if result: 
32          result_dict = result.groupdict() 
33          full_platform = result_dict['platform_token'] 
34          platform_values = full_platform.split(' ') 
35          if platform_values[0] in ('Windows', 'Linux', 'Mac', 'Ubuntu'): 
36              platform = platform_values[0] 
37          elif platform_values[1] in ('Mac',): 
38              # Mac is given as "PPC Mac" or "Intel Mac" 
39              platform = platform_values[1] 
40          else: 
41              platform = None 
42      else: 
43          # Total hack to avoid dealing with regex nightmares 
44          if 'mac' in user_agent.lower(): 
45              full_platform = "Intel Mac 10.6" 
46              platform = 'Mac' 
47          elif 'windows' in user_agent.lower(): 
48              full_platform = "Windows" 
49              platform = 'Windows' 
50          else: 
51              full_platform = None 
52              platform = None 
53   
54      return { 
55          'full_platform': full_platform, 
56          'platform': platform, 
57      } 
58