def parse(self, stream, media_type=None, parser_context=None):
"""
Parses the incoming bytestream as JSON and returns the resulting data.
"""
parser_context = parser_context or {}
encoding = parser_context.get("encoding", settings.DEFAULT_CHARSET)
try:
data = stream.read().decode(encoding)
return json.loads(data)
except ValueError as exc:
raise ParseError("JSON parse error - %s" % six.text_type(exc))
def parse(self, stream, media_type=None, parser_context=None):
"""
Parses the incoming bytestream as a multipart encoded form,
and returns a DataAndFiles object.
`.data` will be a `QueryDict` containing all the form parameters.
`.files` will be a `QueryDict` containing all the form files.
"""
parser_context = parser_context or {}
request = parser_context["request"]
encoding = parser_context.get("encoding", settings.DEFAULT_CHARSET)
meta = request.META.copy()
meta["CONTENT_TYPE"] = media_type
upload_handlers = request.upload_handlers
try:
parser = DjangoMultiPartParser(meta, stream, upload_handlers, encoding)
data, files = parser.parse()
return DataAndFiles(data, files)
except MultiPartParserError as exc:
raise ParseError("Multipart form parse error - %s" % str(exc))
def parse(self, stream, media_type=None, parser_context=None):
"""
Treats the incoming bytestream as a raw file upload and returns
a `DateAndFiles` object.
`.data` will be None (we expect request body to be a file content).
`.files` will be a `QueryDict` containing one "file" element.
"""
parser_context = parser_context or {}
request = parser_context["request"]
encoding = parser_context.get("encoding", settings.DEFAULT_CHARSET)
meta = request.META
upload_handlers = request.upload_handlers
filename = self.get_filename(stream, media_type, parser_context)
# Note that this code is extracted from Django's handling of
# file uploads in MultiPartParser.
content_type = meta.get("HTTP_CONTENT_TYPE",
meta.get("CONTENT_TYPE", ""))
try:
content_length = int(
meta.get("HTTP_CONTENT_LENGTH", meta.get("CONTENT_LENGTH", 0)))
except (ValueError, TypeError):
content_length = None
# See if the handler will want to take care of the parsing.
for handler in upload_handlers:
result = handler.handle_raw_input(None, meta, content_length, None,
encoding)
if result is not None:
return DataAndFiles(None, {"file": result[1]})
# This is the standard case.
possible_sizes = [
x.chunk_size for x in upload_handlers if x.chunk_size
]
chunk_size = min([2**31 - 4] + possible_sizes)
chunks = ChunkIter(stream, chunk_size)
counters = [0] * len(upload_handlers)
for handler in upload_handlers:
try:
handler.new_file(None, filename, content_type, content_length,
encoding)
except StopFutureHandlers:
break
for chunk in chunks:
for i, handler in enumerate(upload_handlers):
chunk_length = len(chunk)
chunk = handler.receive_data_chunk(chunk, counters[i])
counters[i] += chunk_length
if chunk is None:
break
for i, handler in enumerate(upload_handlers):
file_obj = handler.file_complete(counters[i])
if file_obj:
return DataAndFiles(None, {"file": file_obj})
raise ParseError("FileUpload parse error - "
"none of upload handlers can handle the stream")