apps/api/utils.py

   1 # -*- encoding: utf-8 -*-
   2
   3 __author__ = "Łukasz Rekucki"
   4 __date__ = "$2009-09-20 21:48:03$"
   5 __doc__ = "Module documentation."
   6
   7
   8 from functools import wraps
   9 from piston.emitters import Emitter
  10 from piston.utils import rc
  11
  12 import api.response
  13
  14 import wlrepo
  15 import settings
  16
  17 class TextEmitter(Emitter):
  18     def render(self, request):
  19         return unicode(self.construct())
  20
  21 Emitter.register('raw', TextEmitter, 'text/plain; charset=utf-8')
  22 Emitter.register('rawhtml', TextEmitter, 'text/html; charset=utf-8')
  23 Emitter.register('rawxml', TextEmitter, 'application/xml; charset=utf-8')
  24
  25 class DjangoAuth(object):
  26
  27     def is_authenticated(self, request):
  28         return request.user.is_authenticated()
  29
  30     def challenge(self):
  31         return rc.FORBIDDEN
  32
  33
  34 def validate_form(formclass, source='GET'):
  35
  36     def decorator(func):
  37         @wraps(func)
  38         def decorated(self, request, * args, ** kwargs):
  39             form = formclass(getattr(request, source), request.FILES)
  40
  41             if not form.is_valid():
  42                 errorlist = [{'field': k, 'errors': str(e)} for k, e in form.errors.items()]
  43                 return api.response.BadRequest().django_response(errorlist)
  44
  45             kwargs['form'] = form
  46             return func(self, request, * args, ** kwargs)
  47         return decorated
  48     return decorator
  49
  50 def hglibrary(func):
  51     @wraps(func)
  52     def decorated(self, *args, **kwargs):
  53         l = wlrepo.open_library(settings.REPOSITORY_PATH, 'hg')
  54         kwargs['lib'] = l
  55         return func(self, *args, **kwargs)
  56     return decorated
  57
  58
  59
  60 import re
  61 import locale
  62
  63 NAT_EXPR = re.compile(r'(\d+)', re.LOCALE | re.UNICODE)
  64 def natural_order(get_key=lambda x: x):
  65
  66     def getter(key):
  67         nkey = get_key(key)
  68         if not isinstance(key, unicode):
  69             ukey = key.decode('utf-8')
  70         else:
  71             ukey = nkey
  72
  73         parts = enumerate( NAT_EXPR.split(ukey))
  74         return [int(x) if n%2 else locale.strxfrm(x.encode('utf-8')) for (n,x) in parts ]
  75
  76     return getter
  77