def parse_headers(self):
print('************* function parse_headers *************')
self.num_headers[0] = 10
result = lib.phr_parse_request(
ffi.from_buffer(self.buffer),
len(self.buffer),
self.c_method,
self.method_len,
self.c_path,
self.path_len,
self.minor_version,
self.c_headers,
self.num_headers,
0)
"""
const char *buf,
size_t len,
const char **method,
size_t *method_len,
const char **path,
size_t *path_len,
int *minor_version,
struct phr_header *headers,
size_t *num_headers,
size_t last_len
"""
print('parse_headers-result: {}'.format(result))
if result == -2:
return result
elif result == -1:
self.on_error('malformed_headers')
self._reset_state()
self.buffer = bytearray()
return result
else:
self._reset_state()
method = ffi.string(self.c_method[0], self.method_len[0]).decode('ascii')
path = ffi.string(self.c_path[0], self.path_len[0]).decode('ascii')
version = "1." + str(self.minor_version[0])
headers = {}
for idx in range(self.num_headers[0]):
header = self.c_headers[idx]
name = ffi.string(header.name, header.name_len).decode('ascii').title()
value = ffi.string(header.value, header.value_len).decode('latin1')
headers[name] = value
self.buffer = self.buffer[result:]
print('len(self.buffer): {}'.format(len(self.buffer)))
print('self.buffer: {}'.format(self.buffer))
self.request = HttpRequest(method, path, version, headers)
self.on_headers(self.request)
return result
def _parse_body(self):
if self.content_length is None and self.request.method in NO_SEMANTICS:
self.on_body(self.request)
return 0
elif self.content_length == 0:
self.request.body = b""
self.on_body(self.request)
return 0
elif self.content_length is not None:
if self.content_length > len(self.buffer):
return -2
self.request.body = bytes(self.buffer[:self.content_length])
self.on_body(self.request)
self.buffer = self.buffer[self.content_length:]
result = self.content_length
return result
elif self.transfer == 'identity':
return -2
elif self.transfer == 'chunked':
if not self.chunked_decoder:
self.chunked_decoder = ffi.new('struct phr_chunked_decoder*')
self.chunked_decoder.consume_trailer = b'\x01'
chunked_offset_start = self.chunked_offset[0]
self.chunked_offset[0] = len(self.buffer) - self.chunked_offset[0]
result = lib.phr_decode_chunked(
self.chunked_decoder,
ffi.from_buffer(self.buffer) + chunked_offset_start,
self.chunked_offset)
self.chunked_offset[
0] = self.chunked_offset[0] + chunked_offset_start
if result == -2:
self.buffer = self.buffer[:self.chunked_offset[0]]
return result
elif result == -1:
self.on_error('malformed_body')
self._reset_state()
self.buffer = bytearray()
return result
self.request.body = bytes(self.buffer[:self.chunked_offset[0]])
self.on_body(self.request)
self.buffer = self.buffer[self.chunked_offset[0]:self.
chunked_offset[0] + result]
self._reset_state()
return result
def parse_headers(self):
self.num_headers[0] = 10
result = lib.phr_parse_request(
ffi.from_buffer(self.buffer), len(self.buffer),
self.c_method, self.method_len,
self.c_path, self.path_len,
self.minor_version, self.c_headers, self.num_headers, 0)
if result == -2:
return result
elif result == -1:
self.on_error('malformed_headers')
self._reset_state()
self.buffer = bytearray()
return result
else:
self._reset_state()
method = ffi.string(self.c_method[0], self.method_len[0]).decode('ascii')
path = ffi.string(self.c_path[0], self.path_len[0]).decode('ascii')
version = "1." + str(self.minor_version[0])
headers = {}
for idx in range(self.num_headers[0]):
header = self.c_headers[idx]
name = ffi.string(header.name, header.name_len).decode('ascii').title()
value = ffi.string(header.value, header.value_len).decode('latin1')
headers[name] = value
self.buffer = self.buffer[result:]
self.request = HttpRequest(method, path, version, headers)
self.on_headers(self.request)
return result
def _parse_headers(self):
self.num_headers[0] = 10
# FIXME: More than 10 headers
result = lib.phr_parse_request(ffi.from_buffer(self.buffer),
len(self.buffer), self.c_method,
self.method_len, self.c_path,
self.path_len, self.minor_version,
self.c_headers, self.num_headers, 0)
if result == -2:
return result
elif result == -1:
self.on_error('malformed_headers')
self._reset_state()
self.buffer = bytearray()
return result
else:
self._reset_state()
method = ffi.string(self.c_method[0],
self.method_len[0]).decode('ascii')
path = ffi.string(self.c_path[0], self.path_len[0]).decode('ascii')
version = "1." + str(self.minor_version[0])
headers = {}
for idx in range(self.num_headers[0]):
header = self.c_headers[idx]
name = ffi.string(header.name,
header.name_len).decode('ascii').title()
value = ffi.string(header.value, header.value_len).decode('latin1')
headers[name] = value
self.buffer = self.buffer[result:]
if self.minor_version[0] == 0:
self.connection = headers.get('Connection', 'close')
self.transfer = 'identity'
else:
self.connection = headers.get('Connection', 'keep-alive')
self.transfer = headers.get('Transfer-Encoding', 'chunked')
self.content_length = headers.get('Content-Length')
if self.content_length is not None:
content_length_error = False
if not self.content_length:
content_length_error = True
if not content_length_error and self.content_length[0] in '+-':
content_length_error = True
if not content_length_error:
try:
self.content_length = int(self.content_length)
except ValueError:
content_length_error = True
if content_length_error:
self.on_error('invalid_headers')
self._reset_state()
self.buffer = bytearray()
return -1
self.request = HttpRequest(method, path, version, headers)
self.on_headers(self.request)
return result
