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import json
class BaseParser(object):
def __init__(self, resource, request):
self.resource = resource
self.request = request
def parse(self, input):
return {}
class JSONParser(BaseParser):
def parse(self, input):
return json.loads(input)
class XMLParser(BaseParser):
pass
class FormParser(BaseParser):
"""The default parser for form data.
Return a dict containing a single value for each non-reserved parameter
"""
def __init__(self, resource, request):
if request.method == 'PUT':
# Fix from piston to force Django to give PUT requests the same
# form processing that POST requests get...
#
# Bug fix: if _load_post_and_files has already been called, for
# example by middleware accessing request.POST, the below code to
# pretend the request is a POST instead of a PUT will be too late
# to make a difference. Also calling _load_post_and_files will result
# in the following exception:
# AttributeError: You cannot set the upload handlers after the upload has been processed.
# The fix is to check for the presence of the _post field which is set
# the first time _load_post_and_files is called (both by wsgi.py and
# modpython.py). If it's set, the request has to be 'reset' to redo
# the query value parsing in POST mode.
if hasattr(request, '_post'):
del request._post
del request._files
try:
request.method = "POST"
request._load_post_and_files()
request.method = "PUT"
except AttributeError:
request.META['REQUEST_METHOD'] = 'POST'
request._load_post_and_files()
request.META['REQUEST_METHOD'] = 'PUT'
#
self.data = {}
for (key, val) in request.POST.items():
if key not in resource.RESERVED_PARAMS:
self.data[key] = val
def parse(self, input):
return self.data
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