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JSONResponse classes

View json-response.py
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import re
import simplejson
from django.http import HttpResponse
from django.conf import settings
 
 
class JSONResponse(HttpResponse):
def __init__(self, request, data):
indent = 2 if settings.DEBUG else None
mime = "text/javascript" if settings.DEBUG else "application/json"
content = simplejson.dumps(data, indent=indent)
callback = request.GET.get('callback')
if callback:
# verify that the callback is only letters, numbers, periods, and underscores
if re.compile(r'^[a-zA-Z][\w.]*$').match(callback):
content = '%s(%s);' % (callback, content)
super(JSONResponse, self).__init__(
content = content,
mimetype = mime,
)
 
 
class JSONErrorResponse(JSONResponse):
def __init__(self, request, data):
super(JSONErrorResponse, self).__init__(request, {'error': data})
 
 
class JSONResponseUnauthorized(JSONErrorResponse):
status_code = 401
 
def __init__(self, request, data):
super(JSONResponseUnauthorized, self).__init__(request, data)
self['WWW-Authenticate'] = 'Basic realm="%s"' % settings.SITE_NAME
 
class JSONResponseForbidden(JSONErrorResponse):
status_code = 403
 
def __init__(self, request, data='Forbidden.'):
super(JSONResponseForbidden, self).__init__(request, data)
 
class JSONResponseNotFound(JSONErrorResponse):
status_code = 404
 
class JSONResponseMethodNotAllowed(JSONErrorResponse):
status_code = 405
 
def __init__(self, request, data=None):
if not data:
data = '%s method not allowed.' % request.method
super(JSONErrorResponse, self).__init__(request, data)
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