1685 lines
61 KiB
Cython
1685 lines
61 KiB
Cython
cimport cspdylay
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from libc.stdlib cimport malloc, free
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from libc.string cimport memcpy, memset
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from libc.stdint cimport uint8_t, uint16_t, uint32_t, int32_t
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# Also update version in setup.py
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__version__ = '0.1.2'
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class EOFError(Exception):
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pass
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class CallbackFailureError(Exception):
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pass
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class TemporalCallbackFailureError(Exception):
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pass
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class InvalidArgumentError(Exception):
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pass
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class ZlibError(Exception):
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pass
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class UnsupportedVersionError(Exception):
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pass
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class StreamClosedError(Exception):
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pass
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class DataProvider:
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def __init__(self, source, read_cb):
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self.source = source
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self.read_cb = read_cb
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cdef class CtrlFrame:
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cdef uint16_t version
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cdef uint16_t frame_type
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cdef uint8_t flags
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cdef int32_t length
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cdef void fillhd(self, cspdylay.spdylay_ctrl_hd *hd):
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self.version = hd.version
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self.frame_type = hd.type
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self.flags = hd.flags
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self.length = hd.length
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property version:
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def __get__(self):
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return self.version
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property frame_type:
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def __get__(self):
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return self.frame_type
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property flags:
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def __get__(self):
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return self.flags
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property length:
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def __get__(self):
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return self.length
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cdef class SynStreamFrame(CtrlFrame):
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cdef int32_t stream_id
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cdef int32_t assoc_stream_id
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cdef uint8_t pri
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cdef uint8_t slot
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cdef object nv
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cdef fill(self, cspdylay.spdylay_syn_stream *frame):
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self.fillhd(&frame.hd)
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self.stream_id = frame.stream_id
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self.assoc_stream_id = frame.assoc_stream_id
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self.pri = frame.pri
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self.slot = frame.slot
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self.nv = cnv2pynv(frame.nv)
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property stream_id:
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def __get__(self):
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return self.stream_id
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property assoc_stream_id:
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def __get__(self):
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return self.assoc_stream_id
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property pri:
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def __get__(self):
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return self.pri
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property nv:
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def __get__(self):
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return self.nv
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cdef class SynReplyFrame(CtrlFrame):
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cdef int32_t stream_id
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cdef object nv
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cdef fill(self, cspdylay.spdylay_syn_reply *frame):
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self.fillhd(&frame.hd)
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self.stream_id = frame.stream_id
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self.nv = cnv2pynv(frame.nv)
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property stream_id:
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def __get__(self):
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return self.stream_id
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property nv:
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def __get__(self):
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return self.nv
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cdef class HeadersFrame(CtrlFrame):
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cdef int32_t stream_id
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cdef object nv
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cdef fill(self, cspdylay.spdylay_headers *frame):
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self.fillhd(&frame.hd)
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self.stream_id = frame.stream_id
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self.nv = cnv2pynv(frame.nv)
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property stream_id:
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def __get__(self):
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return self.stream_id
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property nv:
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def __get__(self):
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return self.nv
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cdef class RstStreamFrame(CtrlFrame):
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cdef int32_t stream_id
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cdef uint32_t status_code
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cdef fill(self, cspdylay.spdylay_rst_stream *frame):
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self.fillhd(&frame.hd)
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self.stream_id = frame.stream_id
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self.status_code = frame.status_code
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property stream_id:
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def __get__(self):
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return self.stream_id
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property status_code:
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def __get__(self):
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return self.status_code
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cdef class SettingsFrame(CtrlFrame):
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cdef object iv
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cdef fill(self, cspdylay.spdylay_settings *frame):
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self.fillhd(&frame.hd)
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self.iv = csettings2pysettings(frame.niv, frame.iv)
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property iv:
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def __get__(self):
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return self.iv
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cdef class PingFrame(CtrlFrame):
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cdef uint32_t unique_id
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cdef fill(self, cspdylay.spdylay_ping *frame):
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self.fillhd(&frame.hd)
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self.unique_id = frame.unique_id
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property unique_id:
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def __get__(self):
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return self.unique_id
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cdef class GoawayFrame(CtrlFrame):
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cdef int32_t last_good_stream_id
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cdef uint32_t status_code
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cdef fill(self, cspdylay.spdylay_goaway *frame):
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self.fillhd(&frame.hd)
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self.last_good_stream_id = frame.last_good_stream_id
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self.status_code = frame.status_code
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property last_good_stream_id:
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def __get__(self):
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return self.last_good_stream_id
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property status_code:
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def __get__(self):
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return self.status_code
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cdef class WindowUpdateFrame(CtrlFrame):
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cdef int32_t stream_id
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cdef int32_t delta_window_size
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cdef fill(self, cspdylay.spdylay_window_update *frame):
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self.fillhd(&frame.hd)
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self.stream_id = frame.stream_id
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self.delta_window_size = frame.delta_window_size
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property stream_id:
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def __get__(self):
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return self.stream_id
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property delta_window_size:
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def __get__(self):
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return self.delta_window_size
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cdef cnv2pynv(char **nv):
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''' Convert C-style name/value pairs ``nv`` to Python style
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pairs. We assume that strings in nv is UTF-8 encoded as per SPDY
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spec. In Python pairs, we use unicode string.'''
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cdef size_t i
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pynv = []
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i = 0
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while nv[i] != NULL:
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pynv.append((nv[i].decode('UTF-8'), nv[i+1].decode('UTF-8')))
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i += 2
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return pynv
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cdef char** pynv2cnv(object nv) except *:
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''' Convert Python style UTF-8 name/value pairs ``nv`` to C-style
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pairs. Python style name/value pairs are list of tuple (key,
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value).'''
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cdef char **cnv = <char**>malloc((len(nv)*2+1)*sizeof(char*))
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cdef size_t i
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if cnv == NULL:
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raise MemoryError()
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i = 0
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for n, v in nv:
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cnv[i] = n
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i += 1
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cnv[i] = v
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i += 1
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cnv[i] = NULL
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return cnv
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cdef pynv_encode(nv):
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res = []
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for k, v in nv:
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res.append((k.encode('UTF-8'), v.encode('UTF-8')))
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return res
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cdef object csettings2pysettings(size_t niv,
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cspdylay.spdylay_settings_entry *iv):
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cdef size_t i = 0
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cdef cspdylay.spdylay_settings_entry *ent
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res = []
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while i < niv:
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ent = &iv[i]
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res.append((ent.settings_id, ent.flags, ent.value))
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i += 1
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return res
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cdef cspdylay.spdylay_settings_entry* pysettings2csettings(object iv) except *:
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cdef size_t i
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cdef cspdylay.spdylay_settings_entry *civ =\
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<cspdylay.spdylay_settings_entry*>malloc(\
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len(iv)*sizeof(cspdylay.spdylay_settings_entry))
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if civ == NULL:
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raise MemoryError()
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i = 0
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for settings_id, flags, value in iv:
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civ[i].settings_id = settings_id
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civ[i].flags = flags
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civ[i].value = value
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i += 1
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return civ
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cdef cspdylay.spdylay_data_provider create_c_data_prd\
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(cspdylay.spdylay_data_provider *cdata_prd, object pydata_prd):
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cdata_prd.source.ptr = <void*>pydata_prd
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cdata_prd.read_callback = read_callback
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cdef object cframe2pyframe(cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame):
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cdef SynStreamFrame syn_stream
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cdef SynReplyFrame syn_reply
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cdef HeadersFrame headers
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cdef RstStreamFrame rst_stream
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cdef SettingsFrame settings
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cdef PingFrame ping
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cdef GoawayFrame goaway
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cdef WindowUpdateFrame window_update
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cdef object pyframe = None
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if frame_type == cspdylay.SPDYLAY_SYN_STREAM:
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syn_stream = SynStreamFrame()
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syn_stream.fill(&frame.syn_stream)
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pyframe = syn_stream
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elif frame_type == cspdylay.SPDYLAY_SYN_REPLY:
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syn_reply = SynReplyFrame()
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syn_reply.fill(&frame.syn_reply)
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pyframe = syn_reply
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elif frame_type == cspdylay.SPDYLAY_HEADERS:
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headers = HeadersFrame()
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headers.fill(&frame.headers)
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pyframe = headers
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elif frame_type == cspdylay.SPDYLAY_RST_STREAM:
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rst_stream = RstStreamFrame()
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rst_stream.fill(&frame.rst_stream)
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pyframe = rst_stream
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elif frame_type == cspdylay.SPDYLAY_SETTINGS:
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settings = SettingsFrame()
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settings.fill(&frame.settings)
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pyframe = settings
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elif frame_type == cspdylay.SPDYLAY_PING:
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ping = PingFrame()
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ping.fill(&frame.ping)
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pyframe = ping
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elif frame_type == cspdylay.SPDYLAY_GOAWAY:
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goaway = GoawayFrame()
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goaway.fill(&frame.goaway)
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pyframe = goaway
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elif frame_type == cspdylay.SPDYLAY_WINDOW_UPDATE:
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window_update = WindowUpdateFrame()
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window_update.fill(&frame.window_update)
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pyframe = window_update
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return pyframe
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cdef void _call_frame_callback(Session pysession,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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object callback):
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if not callback:
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return
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try:
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pyframe = cframe2pyframe(frame_type, frame)
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if pyframe:
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callback(pysession, pyframe)
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except Exception as e:
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pysession.error = e
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except BaseException as e:
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pysession.base_error = e
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cdef void on_ctrl_recv_callback(cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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void *user_data):
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cdef Session pysession = <Session>user_data
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_call_frame_callback(pysession, frame_type, frame,
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pysession.on_ctrl_recv_cb)
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cdef void on_invalid_ctrl_recv_callback(cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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uint32_t status_code,
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void *user_data):
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cdef Session pysession = <Session>user_data
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if not pysession.on_invalid_ctrl_recv_cb:
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return
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try:
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pyframe = cframe2pyframe(frame_type, frame)
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if pyframe:
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pysession.on_invalid_ctrl_recv_cb(pysession, pyframe, status_code)
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except Exception as e:
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pysession.error = e
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except BaseException as e:
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pysession.base_error = e
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cdef void before_ctrl_send_callback(cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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void *user_data):
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cdef Session pysession = <Session>user_data
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_call_frame_callback(pysession, frame_type, frame,
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pysession.before_ctrl_send_cb)
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cdef void on_ctrl_send_callback(cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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void *user_data):
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cdef Session pysession = <Session>user_data
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_call_frame_callback(pysession, frame_type, frame,
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pysession.on_ctrl_send_cb)
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cdef void on_ctrl_not_send_callback(cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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cspdylay.spdylay_frame *frame,
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int error_code,
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void *user_data):
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cdef Session pysession = <Session>user_data
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if not pysession.on_ctrl_not_send_cb:
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return
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try:
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pyframe = cframe2pyframe(frame_type, frame)
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if pyframe:
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pysession.on_ctrl_not_send_cb(pysession, pyframe, error_code)
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except Exception as e:
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pysession.error = e
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except BaseException as e:
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pysession.base_error = e
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cdef void on_ctrl_recv_parse_error_callback(\
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cspdylay.spdylay_session *session,
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cspdylay.spdylay_frame_type frame_type,
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uint8_t *head, size_t headlen,
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uint8_t *payload, size_t payloadlen,
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int error_code, void *user_data):
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cdef Session pysession = <Session>user_data
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if not pysession.on_ctrl_recv_parse_error_cb:
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return
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try:
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pysession.on_ctrl_recv_parse_error_cb(pysession, frame_type,
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(<char*>head)[:headlen],
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(<char*>payload)[:payloadlen],
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error_code)
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except Exception as e:
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pysession.error = e
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except BaseException as e:
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pysession.base_error = e
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cdef void on_unknown_ctrl_recv_callback(cspdylay.spdylay_session *session,
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uint8_t *head, size_t headlen,
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uint8_t *payload, size_t payloadlen,
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void *user_data):
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cdef Session pysession = <Session>user_data
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if not pysession.on_unknown_ctrl_recv_cb:
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return
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try:
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pysession.on_unknown_ctrl_recv_cb(pysession,
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(<char*>head)[:headlen],
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(<char*>payload)[:payloadlen])
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except Exception as e:
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pysession.error = e
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except BaseException as e:
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pysession.base_error = e
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|
|
|
cdef ssize_t recv_callback(cspdylay.spdylay_session *session,
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uint8_t *buf, size_t length,
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int flags, void *user_data):
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cdef Session pysession = <Session>user_data
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if pysession.recv_callback:
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try:
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data = pysession.recv_callback(pysession, length)
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except EOFError as e:
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pysession.error = e
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return cspdylay.SPDYLAY_ERR_EOF
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except CallbackFailureError as e:
|
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pysession.error = e
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return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
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except Exception as e:
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pysession.error = e
|
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return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
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except BaseException as e:
|
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pysession.base_error = e
|
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return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
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if data:
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if len(data) > length:
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return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
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memcpy(buf, <char*>data, len(data))
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return len(data)
|
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else:
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return cspdylay.SPDYLAY_ERR_WOULDBLOCK
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else:
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return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
|
|
cdef ssize_t send_callback(cspdylay.spdylay_session *session,
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uint8_t *data, size_t length, int flags,
|
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void *user_data):
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cdef Session pysession = <Session>user_data
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|
if pysession.send_callback:
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try:
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rv = pysession.send_callback(pysession, (<char*>data)[:length])
|
|
except CallbackFailureError as e:
|
|
pysession.error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
except Exception as e:
|
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pysession.error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
except BaseException as e:
|
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pysession.base_error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
|
|
if rv:
|
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return rv
|
|
else:
|
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return cspdylay.SPDYLAY_ERR_WOULDBLOCK
|
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else:
|
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# If no send_callback is given, pretend all data were sent and
|
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# just return length
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return length
|
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|
|
cdef void on_data_chunk_recv_callback(cspdylay.spdylay_session *session,
|
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uint8_t flags, int32_t stream_id,
|
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uint8_t *data, size_t length,
|
|
void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
if pysession.on_data_chunk_recv_cb:
|
|
try:
|
|
pysession.on_data_chunk_recv_cb(pysession, flags, stream_id,
|
|
(<char*>data)[:length])
|
|
except Exception as e:
|
|
pysession.error = e
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
|
|
cdef void on_data_recv_callback(cspdylay.spdylay_session *session,
|
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uint8_t flags, int32_t stream_id,
|
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int32_t length, void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
if pysession.on_data_recv_cb:
|
|
try:
|
|
pysession.on_data_recv_cb(pysession, flags, stream_id, length)
|
|
except Exception as e:
|
|
pysession.error = e
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
|
|
cdef void on_data_send_callback(cspdylay.spdylay_session *session,
|
|
uint8_t flags, int32_t stream_id,
|
|
int32_t length, void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
if pysession.on_data_send_cb:
|
|
try:
|
|
pysession.on_data_send_cb(pysession, flags, stream_id, length)
|
|
except Exception as e:
|
|
pysession.error = e
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
|
|
cdef void on_stream_close_callback(cspdylay.spdylay_session *session,
|
|
int32_t stream_id,
|
|
cspdylay.spdylay_status_code status_code,
|
|
void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
if pysession.on_stream_close_cb:
|
|
try:
|
|
pysession.on_stream_close_cb(pysession, stream_id, status_code)
|
|
except Exception as e:
|
|
pysession.error = e
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
|
|
cdef void on_request_recv_callback(cspdylay.spdylay_session *session,
|
|
int32_t stream_id,
|
|
void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
if pysession.on_request_recv_cb:
|
|
try:
|
|
pysession.on_request_recv_cb(pysession, stream_id)
|
|
except Exception as e:
|
|
pysession.error = e
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
|
|
cdef class ReadCtrl:
|
|
cdef int flags
|
|
|
|
def __cinit__(self):
|
|
self.flags = 0
|
|
|
|
property flags:
|
|
def __set__(self, value):
|
|
self.flags = value
|
|
|
|
cdef ssize_t read_callback(cspdylay.spdylay_session *session,
|
|
int32_t stream_id, uint8_t *buf, size_t length,
|
|
int *eof, cspdylay.spdylay_data_source *source,
|
|
void *user_data):
|
|
cdef Session pysession = <Session>user_data
|
|
cdef ReadCtrl read_ctrl = ReadCtrl()
|
|
data_prd = <object>source.ptr
|
|
|
|
try:
|
|
res = data_prd.read_cb(pysession, stream_id, length, read_ctrl,
|
|
data_prd.source)
|
|
except TemporalCallbackFailureError as e:
|
|
return cspdylay.SPDYLAY_ERR_TEMPORAL_CALLBACK_FAILURE
|
|
except CallbackFailureError as e:
|
|
pysession.error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
except Exception as e:
|
|
pysession.error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
except BaseException as e:
|
|
pysession.base_error = e
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
|
|
if read_ctrl.flags & READ_EOF:
|
|
eof[0] = 1
|
|
if res == cspdylay.SPDYLAY_ERR_DEFERRED:
|
|
return res
|
|
elif res:
|
|
if len(res) > length:
|
|
return cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
memcpy(buf, <char*>res, len(res))
|
|
return len(res)
|
|
else:
|
|
return 0
|
|
|
|
cdef class Session:
|
|
cdef cspdylay.spdylay_session *_c_session
|
|
cdef object recv_callback
|
|
cdef object send_callback
|
|
cdef object on_ctrl_recv_cb
|
|
cdef object on_invalid_ctrl_recv_cb
|
|
cdef object on_data_chunk_recv_cb
|
|
cdef object on_data_recv_cb
|
|
cdef object before_ctrl_send_cb
|
|
cdef object on_ctrl_send_cb
|
|
cdef object on_ctrl_not_send_cb
|
|
cdef object on_data_send_cb
|
|
cdef object on_stream_close_cb
|
|
cdef object on_request_recv_cb
|
|
cdef object on_ctrl_recv_parse_error_cb
|
|
cdef object on_unknown_ctrl_recv_cb
|
|
cdef object user_data
|
|
|
|
cdef object error
|
|
cdef object base_error
|
|
|
|
property user_data:
|
|
def __get__(self):
|
|
return self.user_data
|
|
|
|
def __cinit__(self, side, version, config=None,
|
|
send_cb=None, recv_cb=None,
|
|
on_ctrl_recv_cb=None,
|
|
on_invalid_ctrl_recv_cb=None,
|
|
on_data_chunk_recv_cb=None,
|
|
on_data_recv_cb=None,
|
|
before_ctrl_send_cb=None,
|
|
on_ctrl_send_cb=None,
|
|
on_ctrl_not_send_cb=None,
|
|
on_data_send_cb=None,
|
|
on_stream_close_cb=None,
|
|
on_request_recv_cb=None,
|
|
on_ctrl_recv_parse_error_cb=None,
|
|
on_unknown_ctrl_recv_cb=None,
|
|
user_data=None):
|
|
cdef cspdylay.spdylay_session_callbacks c_session_callbacks
|
|
cdef int rv
|
|
self._c_session = NULL
|
|
memset(&c_session_callbacks, 0, sizeof(c_session_callbacks))
|
|
c_session_callbacks.recv_callback = \
|
|
<cspdylay.spdylay_recv_callback>recv_callback
|
|
c_session_callbacks.send_callback = \
|
|
<cspdylay.spdylay_send_callback>send_callback
|
|
c_session_callbacks.on_ctrl_recv_callback = \
|
|
<cspdylay.spdylay_on_ctrl_recv_callback>on_ctrl_recv_callback
|
|
c_session_callbacks.on_invalid_ctrl_recv_callback = \
|
|
<cspdylay.spdylay_on_invalid_ctrl_recv_callback>\
|
|
on_invalid_ctrl_recv_callback
|
|
c_session_callbacks.on_data_chunk_recv_callback = \
|
|
<cspdylay.spdylay_on_data_chunk_recv_callback>\
|
|
on_data_chunk_recv_callback
|
|
c_session_callbacks.on_data_recv_callback = \
|
|
<cspdylay.spdylay_on_data_recv_callback>on_data_recv_callback
|
|
c_session_callbacks.before_ctrl_send_callback = \
|
|
<cspdylay.spdylay_before_ctrl_send_callback>\
|
|
before_ctrl_send_callback
|
|
c_session_callbacks.on_ctrl_send_callback = \
|
|
<cspdylay.spdylay_on_ctrl_send_callback>on_ctrl_send_callback
|
|
c_session_callbacks.on_ctrl_not_send_callback = \
|
|
<cspdylay.spdylay_on_ctrl_not_send_callback>\
|
|
on_ctrl_not_send_callback
|
|
c_session_callbacks.on_data_send_callback = \
|
|
<cspdylay.spdylay_on_data_send_callback>on_data_send_callback
|
|
c_session_callbacks.on_stream_close_callback = \
|
|
<cspdylay.spdylay_on_stream_close_callback>on_stream_close_callback
|
|
c_session_callbacks.on_request_recv_callback = \
|
|
<cspdylay.spdylay_on_request_recv_callback>on_request_recv_callback
|
|
# c_session_callbacks.get_credential_proof = NULL
|
|
# c_session_callbacks.get_credential_ncerts = NULL
|
|
# c_session_callbacks.get_credential_cert = NULL
|
|
c_session_callbacks.on_ctrl_recv_parse_error_callback = \
|
|
<cspdylay.spdylay_on_ctrl_recv_parse_error_callback>\
|
|
on_ctrl_recv_parse_error_callback
|
|
c_session_callbacks.on_unknown_ctrl_recv_callback = \
|
|
<cspdylay.spdylay_on_unknown_ctrl_recv_callback>\
|
|
on_unknown_ctrl_recv_callback
|
|
|
|
self.recv_callback = recv_cb
|
|
self.send_callback = send_cb
|
|
self.on_ctrl_recv_cb = on_ctrl_recv_cb
|
|
self.on_invalid_ctrl_recv_cb = on_invalid_ctrl_recv_cb
|
|
self.on_data_chunk_recv_cb = on_data_chunk_recv_cb
|
|
self.on_data_recv_cb = on_data_recv_cb
|
|
self.before_ctrl_send_cb = before_ctrl_send_cb
|
|
self.on_ctrl_send_cb = on_ctrl_send_cb
|
|
self.on_ctrl_not_send_cb = on_ctrl_not_send_cb
|
|
self.on_data_send_cb = on_data_send_cb
|
|
self.on_stream_close_cb = on_stream_close_cb
|
|
self.on_request_recv_cb = on_request_recv_cb
|
|
self.on_ctrl_recv_parse_error_cb = on_ctrl_recv_parse_error_cb
|
|
self.on_unknown_ctrl_recv_cb = on_unknown_ctrl_recv_cb
|
|
|
|
self.user_data = user_data
|
|
|
|
if side == CLIENT:
|
|
rv = cspdylay.spdylay_session_client_new(&self._c_session,
|
|
version,
|
|
&c_session_callbacks,
|
|
<void*>self)
|
|
elif side == SERVER:
|
|
rv = cspdylay.spdylay_session_server_new(&self._c_session,
|
|
version,
|
|
&c_session_callbacks,
|
|
<void*>self)
|
|
else:
|
|
raise InvalidArgumentError('side must be either CLIENT or SERVER')
|
|
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_ZLIB:
|
|
raise ZlibError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_UNSUPPORTED_VERSION:
|
|
raise UnsupportedVersionError(_strerror(rv))
|
|
|
|
def __init__(self, side, version, config=None,
|
|
send_cb=None, recv_cb=None,
|
|
on_ctrl_recv_cb=None,
|
|
on_invalid_ctrl_recv_cb=None,
|
|
on_data_chunk_recv_cb=None,
|
|
on_data_recv_cb=None,
|
|
before_ctrl_send_cb=None,
|
|
on_ctrl_send_cb=None,
|
|
on_ctrl_not_send_cb=None,
|
|
on_data_send_cb=None,
|
|
on_stream_close_cb=None,
|
|
on_request_recv_cb=None,
|
|
on_ctrl_recv_parse_error_cb=None,
|
|
user_data=None):
|
|
pass
|
|
|
|
def __dealloc__(self):
|
|
cspdylay.spdylay_session_del(self._c_session)
|
|
|
|
cpdef recv(self, data=None):
|
|
cdef int rv
|
|
cdef char *c_data
|
|
self.error = self.base_error = None
|
|
if data is None:
|
|
rv = cspdylay.spdylay_session_recv(self._c_session)
|
|
else:
|
|
c_data = data
|
|
rv = cspdylay.spdylay_session_mem_recv(self._c_session,
|
|
<uint8_t*>c_data, len(data))
|
|
if self.base_error:
|
|
raise self.base_error
|
|
if self.error:
|
|
raise self.error
|
|
|
|
if rv >= 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_EOF:
|
|
raise EOFError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE:
|
|
raise CallbackFailureError()
|
|
|
|
cpdef send(self):
|
|
cdef int rv
|
|
self.error = self.base_error = None
|
|
rv = cspdylay.spdylay_session_send(self._c_session)
|
|
if self.base_error:
|
|
raise self.base_error
|
|
elif self.error:
|
|
raise self.error
|
|
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE:
|
|
raise CallbackFailureError()
|
|
|
|
cpdef resume_data(self, stream_id):
|
|
cpdef int rv
|
|
rv = cspdylay.spdylay_session_resume_data(self._c_session, stream_id)
|
|
if rv == 0:
|
|
return True
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
return False
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef want_read(self):
|
|
return cspdylay.spdylay_session_want_read(self._c_session)
|
|
|
|
cpdef want_write(self):
|
|
return cspdylay.spdylay_session_want_write(self._c_session)
|
|
|
|
cpdef get_stream_user_data(self, stream_id):
|
|
return <object>cspdylay.spdylay_session_get_stream_user_data(\
|
|
self._c_session, stream_id)
|
|
|
|
cpdef get_outbound_queue_size(self):
|
|
return cspdylay.spdylay_session_get_outbound_queue_size(\
|
|
self._c_session)
|
|
|
|
cpdef get_pri_lowest(self):
|
|
return cspdylay.spdylay_session_get_pri_lowest(self._c_session)
|
|
|
|
|
|
cpdef fail_session(self, status_code):
|
|
cdef int rv
|
|
rv = cspdylay.spdylay_session_fail_session(self._c_session,
|
|
status_code)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_request(self, pri, nv, data_prd=None, stream_user_data=None):
|
|
cdef cspdylay.spdylay_data_provider c_data_prd
|
|
cdef cspdylay.spdylay_data_provider *c_data_prd_ptr
|
|
cpdef int rv
|
|
cdef char **cnv
|
|
nv = pynv_encode(nv)
|
|
cnv = pynv2cnv(nv)
|
|
if data_prd:
|
|
create_c_data_prd(&c_data_prd, data_prd)
|
|
c_data_prd_ptr = &c_data_prd
|
|
else:
|
|
c_data_prd_ptr = NULL
|
|
|
|
rv = cspdylay.spdylay_submit_request(self._c_session, pri, cnv,
|
|
c_data_prd_ptr,
|
|
<void*>stream_user_data)
|
|
free(cnv)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_response(self, stream_id, nv, data_prd=None):
|
|
cdef cspdylay.spdylay_data_provider c_data_prd
|
|
cdef cspdylay.spdylay_data_provider *c_data_prd_ptr
|
|
cpdef int rv
|
|
cdef char **cnv
|
|
nv = pynv_encode(nv)
|
|
cnv = pynv2cnv(nv)
|
|
if data_prd:
|
|
create_c_data_prd(&c_data_prd, data_prd)
|
|
c_data_prd_ptr = &c_data_prd
|
|
else:
|
|
c_data_prd_ptr = NULL
|
|
|
|
rv = cspdylay.spdylay_submit_response(self._c_session, stream_id,
|
|
cnv, c_data_prd_ptr)
|
|
free(cnv)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_syn_stream(self, flags, pri, nv, assoc_stream_id=0,
|
|
stream_user_data=None):
|
|
cdef int rv
|
|
cdef char **cnv
|
|
nv = pynv_encode(nv)
|
|
cnv = pynv2cnv(nv)
|
|
rv = cspdylay.spdylay_submit_syn_stream(self._c_session,
|
|
flags,
|
|
assoc_stream_id,
|
|
pri,
|
|
cnv,
|
|
<void*>stream_user_data)
|
|
free(cnv)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_syn_reply(self, flags, stream_id, nv):
|
|
cdef int rv
|
|
cdef char **cnv
|
|
nv = pynv_encode(nv)
|
|
cnv = pynv2cnv(nv)
|
|
rv = cspdylay.spdylay_submit_syn_reply(self._c_session,
|
|
flags, stream_id, cnv)
|
|
free(cnv)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_headers(self, flags, stream_id, nv):
|
|
cdef int rv
|
|
cdef char **cnv
|
|
nv = pynv_encode(nv)
|
|
cnv = pynv2cnv(nv)
|
|
rv = cspdylay.spdylay_submit_headers(self._c_session,
|
|
flags, stream_id, cnv)
|
|
free(cnv)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_data(self, stream_id, flags, data_prd):
|
|
cdef cspdylay.spdylay_data_provider c_data_prd
|
|
cdef cspdylay.spdylay_data_provider *c_data_prd_ptr
|
|
cpdef int rv
|
|
if data_prd:
|
|
create_c_data_prd(&c_data_prd, data_prd)
|
|
c_data_prd_ptr = &c_data_prd
|
|
else:
|
|
c_data_prd_ptr = NULL
|
|
|
|
rv = cspdylay.spdylay_submit_data(self._c_session, stream_id,
|
|
flags, c_data_prd_ptr)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_rst_stream(self, stream_id, status_code):
|
|
cdef int rv
|
|
rv = cspdylay.spdylay_submit_rst_stream(self._c_session, stream_id,
|
|
status_code)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_ping(self):
|
|
cdef int rv
|
|
rv = cspdylay.spdylay_submit_ping(self._c_session)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_goaway(self, status_code):
|
|
cdef int rv
|
|
rv = cspdylay.spdylay_submit_goaway(self._c_session, status_code)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_window_update(self, stream_id, delta_window_size):
|
|
cdef int rv
|
|
rv = cspdylay.spdylay_submit_window_update(self._c_session, stream_id,
|
|
delta_window_size)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_STREAM_CLOSED:
|
|
raise StreamClosedError()
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cpdef submit_settings(self, flags, iv):
|
|
''' Submit SETTINGS frame. iv is list of tuple (settings_id,
|
|
flag, value)
|
|
'''
|
|
cdef int rv
|
|
cdef cspdylay.spdylay_settings_entry *civ = pysettings2csettings(iv)
|
|
rv = cspdylay.spdylay_submit_settings(self._c_session, flags,
|
|
civ, len(iv))
|
|
free(civ)
|
|
if rv == 0:
|
|
return
|
|
elif rv == cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT:
|
|
raise InvalidArgumentError(_strerror(rv))
|
|
elif rv == cspdylay.SPDYLAY_ERR_NOMEM:
|
|
raise MemoryError()
|
|
|
|
cdef _strerror(int error_code):
|
|
return cspdylay.spdylay_strerror(error_code).decode('UTF-8')
|
|
|
|
cpdef get_npn_protocols():
|
|
cdef size_t proto_list_len
|
|
cdef cspdylay.spdylay_npn_proto *proto_list
|
|
proto_list = cspdylay.spdylay_npn_get_proto_list(&proto_list_len)
|
|
res = []
|
|
for i in range(proto_list_len):
|
|
res.append((<char*>proto_list[i].proto)[:proto_list[i].len]\
|
|
.decode('UTF-8'))
|
|
return res
|
|
|
|
cpdef int npn_get_version(proto):
|
|
cdef char *cproto
|
|
if proto == None:
|
|
return 0
|
|
proto = proto.encode('UTF-8')
|
|
cproto = proto
|
|
return cspdylay.spdylay_npn_get_version(<unsigned char*>cproto, len(proto))
|
|
|
|
# Side
|
|
CLIENT = 1
|
|
SERVER = 2
|
|
|
|
# SPDY protocol version
|
|
PROTO_SPDY2 = cspdylay.SPDYLAY_PROTO_SPDY2
|
|
PROTO_SPDY3 = cspdylay.SPDYLAY_PROTO_SPDY3
|
|
|
|
# Control frame flags
|
|
CTRL_FLAG_NONE = cspdylay.SPDYLAY_CTRL_FLAG_NONE
|
|
CTRL_FLAG_FIN = cspdylay.SPDYLAY_CTRL_FLAG_FIN
|
|
CTRL_FLAG_UNIDIRECTIONAL = cspdylay.SPDYLAY_CTRL_FLAG_UNIDIRECTIONAL
|
|
|
|
# Data frame flags
|
|
DATA_FLAG_NONE = cspdylay.SPDYLAY_DATA_FLAG_NONE
|
|
DATA_FLAG_FIN = cspdylay.SPDYLAY_DATA_FLAG_FIN
|
|
|
|
# Error codes
|
|
ERR_INVALID_ARGUMENT = cspdylay.SPDYLAY_ERR_INVALID_ARGUMENT
|
|
ERR_ZLIB = cspdylay.SPDYLAY_ERR_ZLIB
|
|
ERR_UNSUPPORTED_VERSION = cspdylay.SPDYLAY_ERR_UNSUPPORTED_VERSION
|
|
ERR_WOULDBLOCK = cspdylay.SPDYLAY_ERR_WOULDBLOCK
|
|
ERR_PROTO = cspdylay.SPDYLAY_ERR_PROTO
|
|
ERR_INVALID_FRAME = cspdylay.SPDYLAY_ERR_INVALID_FRAME
|
|
ERR_EOF = cspdylay.SPDYLAY_ERR_EOF
|
|
ERR_DEFERRED = cspdylay.SPDYLAY_ERR_DEFERRED
|
|
ERR_STREAM_ID_NOT_AVAILABLE = cspdylay.SPDYLAY_ERR_STREAM_ID_NOT_AVAILABLE
|
|
ERR_STREAM_CLOSED = cspdylay.SPDYLAY_ERR_STREAM_CLOSED
|
|
ERR_STREAM_CLOSING = cspdylay.SPDYLAY_ERR_STREAM_CLOSING
|
|
ERR_STREAM_SHUT_WR = cspdylay.SPDYLAY_ERR_STREAM_SHUT_WR
|
|
ERR_INVALID_STREAM_ID = cspdylay.SPDYLAY_ERR_INVALID_STREAM_ID
|
|
ERR_INVALID_STREAM_STATE = cspdylay.SPDYLAY_ERR_INVALID_STREAM_STATE
|
|
ERR_DEFERRED_DATA_EXIST = cspdylay.SPDYLAY_ERR_DEFERRED_DATA_EXIST
|
|
ERR_SYN_STREAM_NOT_ALLOWED = cspdylay.SPDYLAY_ERR_SYN_STREAM_NOT_ALLOWED
|
|
ERR_GOAWAY_ALREADY_SENT = cspdylay.SPDYLAY_ERR_GOAWAY_ALREADY_SENT
|
|
ERR_INVALID_HEADER_BLOCK = cspdylay.SPDYLAY_ERR_INVALID_HEADER_BLOCK
|
|
ERR_INVALID_STATE = cspdylay.SPDYLAY_ERR_INVALID_STATE
|
|
ERR_GZIP = cspdylay.SPDYLAY_ERR_GZIP
|
|
ERR_TEMPORAL_CALLBACK_FAILURE = cspdylay.SPDYLAY_ERR_TEMPORAL_CALLBACK_FAILURE
|
|
ERR_FATAL = cspdylay.SPDYLAY_ERR_FATAL
|
|
ERR_NOMEM = cspdylay.SPDYLAY_ERR_NOMEM
|
|
ERR_CALLBACK_FAILURE = cspdylay.SPDYLAY_ERR_CALLBACK_FAILURE
|
|
|
|
# Read Callback Flags
|
|
READ_EOF = 1
|
|
|
|
# The status code for RST_STREAM
|
|
OK = cspdylay.SPDYLAY_OK
|
|
PROTOCOL_ERROR = cspdylay.SPDYLAY_PROTOCOL_ERROR
|
|
INVALID_STREAM = cspdylay.SPDYLAY_INVALID_STREAM
|
|
REFUSED_STREAM = cspdylay.SPDYLAY_REFUSED_STREAM
|
|
UNSUPPORTED_VERSION = cspdylay.SPDYLAY_UNSUPPORTED_VERSION
|
|
CANCEL = cspdylay.SPDYLAY_CANCEL
|
|
INTERNAL_ERROR = cspdylay.SPDYLAY_INTERNAL_ERROR
|
|
FLOW_CONTROL_ERROR = cspdylay.SPDYLAY_FLOW_CONTROL_ERROR
|
|
# Following status codes were introduced in SPDY/3
|
|
STREAM_IN_USE = cspdylay.SPDYLAY_STREAM_IN_USE
|
|
STREAM_ALREADY_CLOSED = cspdylay.SPDYLAY_STREAM_ALREADY_CLOSED
|
|
INVALID_CREDENTIALS = cspdylay.SPDYLAY_INVALID_CREDENTIALS
|
|
FRAME_TOO_LARGE = cspdylay.SPDYLAY_FRAME_TOO_LARGE
|
|
|
|
# The status codes for GOAWAY, introduced in SPDY/3.
|
|
GOAWAY_OK = cspdylay.SPDYLAY_GOAWAY_OK
|
|
GOAWAY_PROTOCOL_ERROR = cspdylay.SPDYLAY_GOAWAY_PROTOCOL_ERROR
|
|
GOAWAY_INTERNAL_ERROR = cspdylay.SPDYLAY_GOAWAY_INTERNAL_ERROR
|
|
|
|
# Frame types
|
|
SYN_STREAM = cspdylay.SPDYLAY_SYN_STREAM
|
|
SYN_REPLY = cspdylay.SPDYLAY_SYN_REPLY
|
|
RST_STREAM = cspdylay.SPDYLAY_RST_STREAM
|
|
SETTINGS = cspdylay.SPDYLAY_SETTINGS
|
|
NOOP = cspdylay.SPDYLAY_NOOP
|
|
PING = cspdylay.SPDYLAY_PING
|
|
GOAWAY = cspdylay.SPDYLAY_GOAWAY
|
|
HEADERS = cspdylay.SPDYLAY_HEADERS
|
|
WINDOW_UPDATE = cspdylay.SPDYLAY_WINDOW_UPDATE
|
|
CREDENTIAL = cspdylay.SPDYLAY_CREDENTIAL
|
|
|
|
# The flags for the SETTINGS control frame.
|
|
FLAG_SETTINGS_NONE = cspdylay.SPDYLAY_FLAG_SETTINGS_NONE
|
|
FLAG_SETTINGS_CLEAR_SETTINGS = cspdylay.SPDYLAY_FLAG_SETTINGS_CLEAR_SETTINGS
|
|
|
|
# The flags for SETTINGS ID/value pair.
|
|
ID_FLAG_SETTINGS_NONE = cspdylay.SPDYLAY_ID_FLAG_SETTINGS_NONE
|
|
ID_FLAG_SETTINGS_PERSIST_VALUE = cspdylay.SPDYLAY_ID_FLAG_SETTINGS_PERSIST_VALUE
|
|
ID_FLAG_SETTINGS_PERSISTED = cspdylay.SPDYLAY_ID_FLAG_SETTINGS_PERSISTED
|
|
|
|
# The SETTINGS ID.
|
|
SETTINGS_UPLOAD_BANDWIDTH = cspdylay.SPDYLAY_SETTINGS_UPLOAD_BANDWIDTH
|
|
SETTINGS_DOWNLOAD_BANDWIDTH = cspdylay.SPDYLAY_SETTINGS_DOWNLOAD_BANDWIDTH
|
|
SETTINGS_ROUND_TRIP_TIME = cspdylay.SPDYLAY_SETTINGS_ROUND_TRIP_TIME
|
|
SETTINGS_MAX_CONCURRENT_STREAMS = \
|
|
cspdylay.SPDYLAY_SETTINGS_MAX_CONCURRENT_STREAMS
|
|
SETTINGS_CURRENT_CWND = cspdylay.SPDYLAY_SETTINGS_CURRENT_CWND
|
|
SETTINGS_DOWNLOAD_RETRANS_RATE = \
|
|
cspdylay.SPDYLAY_SETTINGS_DOWNLOAD_RETRANS_RATE
|
|
SETTINGS_INITIAL_WINDOW_SIZE = cspdylay.SPDYLAY_SETTINGS_INITIAL_WINDOW_SIZE
|
|
SETTINGS_CLIENT_CERTIFICATE_VECTOR_SIZE = \
|
|
cspdylay.SPDYLAY_SETTINGS_CLIENT_CERTIFICATE_VECTOR_SIZE
|
|
SETTINGS_MAX = cspdylay.SPDYLAY_SETTINGS_MAX
|
|
|
|
try:
|
|
# Simple SPDY Server implementation. We mimics the methods and
|
|
# attributes of http.server.BaseHTTPRequestHandler. Since this
|
|
# implementation uses TLS NPN, Python 3.3.0 or later is required.
|
|
|
|
import socket
|
|
import threading
|
|
import socketserver
|
|
import ssl
|
|
import io
|
|
import select
|
|
import sys
|
|
import time
|
|
from xml.sax.saxutils import escape
|
|
|
|
class Stream:
|
|
def __init__(self, stream_id):
|
|
self.stream_id = stream_id
|
|
self.data_prd = None
|
|
|
|
self.method = None
|
|
self.path = None
|
|
self.version = None
|
|
self.scheme = None
|
|
self.host = None
|
|
self.headers = []
|
|
|
|
self.rfile = None
|
|
self.wfile = None
|
|
|
|
def process_headers(self, headers):
|
|
for k, v in headers:
|
|
if k == ':method':
|
|
self.method = v
|
|
elif k == ':scheme':
|
|
self.scheme = v
|
|
elif k == ':path':
|
|
self.path = v
|
|
elif k == ':version':
|
|
self.version = v
|
|
elif k == ':host':
|
|
self.host = v
|
|
else:
|
|
self.headers.append((k, v))
|
|
|
|
class SessionCtrl:
|
|
def __init__(self):
|
|
self.streams = {}
|
|
|
|
class BaseSPDYRequestHandler(socketserver.BaseRequestHandler):
|
|
|
|
server_version = 'Python-spdylay'
|
|
|
|
error_content_type = 'text/html; charset=UTF-8'
|
|
|
|
# Same HTML from Apache error page
|
|
error_message_format = '''\
|
|
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
|
|
<html><head>
|
|
<title>{code} {reason}</title>
|
|
</head><body>
|
|
<h1>{reason}</h1>
|
|
<p>{explain}</p>
|
|
<hr>
|
|
<address>{server} at {hostname} Port {port}</address>
|
|
</body></html>
|
|
'''
|
|
|
|
def send_error(self, code, message=None):
|
|
# Make sure that code is really int
|
|
code = int(code)
|
|
try:
|
|
shortmsg, longmsg = self.responses[code]
|
|
except KeyError:
|
|
shortmsg, longmsg = '???', '???'
|
|
if message is None:
|
|
message = shortmsg
|
|
explain = longmsg
|
|
|
|
content = self.error_message_format.format(\
|
|
code=code,
|
|
reason = escape(message),
|
|
explain=escape(explain),
|
|
server=escape(self.server_version),
|
|
hostname=escape(socket.getfqdn()),
|
|
port=self.server.server_address[1]).encode('UTF-8')
|
|
|
|
self.send_response(code, message)
|
|
self.send_header('content-type', self.error_content_type)
|
|
self.send_header('content-length', str(len(content)))
|
|
|
|
self.wfile.write(content)
|
|
|
|
def send_response(self, code, message=None):
|
|
if message is None:
|
|
try:
|
|
shortmsg, _ = self.responses[code]
|
|
except KeyError:
|
|
shortmsg = '???'
|
|
message = shortmsg
|
|
|
|
self._response_headers.append((':status',
|
|
'{} {}'.format(code, message)))
|
|
|
|
def send_header(self, keyword, value):
|
|
self._response_headers.append((keyword, value))
|
|
|
|
def version_string(self):
|
|
return self.server_version + ' ' + self.sys_version
|
|
|
|
def handle_one_request(self, stream):
|
|
self.stream = stream
|
|
|
|
stream.wfile = io.BytesIO()
|
|
|
|
self.command = stream.method
|
|
self.path = stream.path
|
|
self.request_version = stream.version
|
|
self.headers = stream.headers
|
|
self.rfile = stream.rfile
|
|
self.wfile = stream.wfile
|
|
self._response_headers = []
|
|
|
|
if stream.method is None:
|
|
self.send_error(400)
|
|
else:
|
|
mname = 'do_' + stream.method
|
|
if hasattr(self, mname):
|
|
method = getattr(self, mname)
|
|
|
|
if self.rfile is not None:
|
|
self.rfile.seek(0)
|
|
|
|
method()
|
|
else:
|
|
self.send_error(501, 'Unsupported method ({})'\
|
|
.format(stream.method))
|
|
|
|
self.wfile.seek(0)
|
|
data_prd = DataProvider(self.wfile, self.read_cb)
|
|
stream.data_prd = data_prd
|
|
|
|
self.send_header(':version', 'HTTP/1.1')
|
|
self.send_header('server', self.version_string())
|
|
self.send_header('date', self.date_time_string())
|
|
|
|
self.session.submit_response(stream.stream_id,
|
|
self._response_headers, data_prd)
|
|
|
|
|
|
def send_cb(self, session, data):
|
|
return self.request.send(data)
|
|
|
|
def read_cb(self, session, stream_id, length, read_ctrl, source):
|
|
data = source.read(length)
|
|
if not data:
|
|
read_ctrl.flags = READ_EOF
|
|
return data
|
|
|
|
def on_ctrl_recv_cb(self, session, frame):
|
|
if frame.frame_type == SYN_STREAM:
|
|
stream = Stream(frame.stream_id)
|
|
self.ssctrl.streams[frame.stream_id] = stream
|
|
|
|
stream.process_headers(frame.nv)
|
|
elif frame.frame_type == HEADERS:
|
|
if frame.stream_id in self.ssctrl.streams:
|
|
stream = self.ssctrl.streams[frame.stream_id]
|
|
stream.process_headers(frame.nv)
|
|
|
|
def on_data_chunk_recv_cb(self, session, flags, stream_id, data):
|
|
if stream_id in self.ssctrl.streams:
|
|
stream = self.ssctrl.streams[stream_id]
|
|
if stream.method == 'POST':
|
|
if not stream.rfile:
|
|
stream.rfile = io.BytesIO()
|
|
stream.rfile.write(data)
|
|
else:
|
|
# We don't allow request body if method is not POST
|
|
session.submit_rst_stream(stream_id, PROTOCOL_ERROR)
|
|
|
|
def on_stream_close_cb(self, session, stream_id, status_code):
|
|
if stream_id in self.ssctrl.streams:
|
|
del self.ssctrl.streams[stream_id]
|
|
|
|
def on_request_recv_cb(self, session, stream_id):
|
|
if stream_id in self.ssctrl.streams:
|
|
stream = self.ssctrl.streams[stream_id]
|
|
self.handle_one_request(stream)
|
|
|
|
def handle(self):
|
|
self.request.setsockopt(socket.IPPROTO_TCP,
|
|
socket.TCP_NODELAY, True)
|
|
try:
|
|
self.request.do_handshake()
|
|
self.request.setblocking(False)
|
|
|
|
version = npn_get_version(self.request.selected_npn_protocol())
|
|
if version == 0:
|
|
return
|
|
|
|
self.ssctrl = SessionCtrl()
|
|
self.session = Session(\
|
|
SERVER, version,
|
|
send_cb=self.send_cb,
|
|
on_ctrl_recv_cb=self.on_ctrl_recv_cb,
|
|
on_data_chunk_recv_cb=self.on_data_chunk_recv_cb,
|
|
on_stream_close_cb=self.on_stream_close_cb,
|
|
on_request_recv_cb=self.on_request_recv_cb)
|
|
|
|
self.session.submit_settings(\
|
|
FLAG_SETTINGS_NONE,
|
|
[(SETTINGS_MAX_CONCURRENT_STREAMS, ID_FLAG_SETTINGS_NONE,
|
|
100)]
|
|
)
|
|
|
|
while self.session.want_read() or self.session.want_write():
|
|
want_read = want_write = False
|
|
try:
|
|
data = self.request.recv(4096)
|
|
if data:
|
|
self.session.recv(data)
|
|
else:
|
|
break
|
|
except ssl.SSLWantReadError:
|
|
want_read = True
|
|
except ssl.SSLWantWriteError:
|
|
want_write = True
|
|
try:
|
|
self.session.send()
|
|
except ssl.SSLWantReadError:
|
|
want_read = True
|
|
except ssl.SSLWantWriteError:
|
|
want_write = True
|
|
|
|
if want_read or want_write:
|
|
select.select([self.request] if want_read else [],
|
|
[self.request] if want_write else [],
|
|
[])
|
|
finally:
|
|
self.request.setblocking(True)
|
|
|
|
# The following methods and attributes are copied from
|
|
# Lib/http/server.py of cpython source code
|
|
|
|
def date_time_string(self, timestamp=None):
|
|
"""Return the current date and time formatted for a
|
|
message header."""
|
|
if timestamp is None:
|
|
timestamp = time.time()
|
|
year, month, day, hh, mm, ss, wd, y, z = time.gmtime(timestamp)
|
|
s = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % (
|
|
self.weekdayname[wd],
|
|
day, self.monthname[month], year,
|
|
hh, mm, ss)
|
|
return s
|
|
|
|
weekdayname = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
|
|
|
|
monthname = [None,
|
|
'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
|
|
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
|
|
|
|
# The Python system version, truncated to its first component.
|
|
sys_version = "Python/" + sys.version.split()[0]
|
|
|
|
# Table mapping response codes to messages; entries have the
|
|
# form {code: (shortmessage, longmessage)}.
|
|
# See RFC 2616 and 6585.
|
|
responses = {
|
|
100: ('Continue', 'Request received, please continue'),
|
|
101: ('Switching Protocols',
|
|
'Switching to new protocol; obey Upgrade header'),
|
|
|
|
200: ('OK', 'Request fulfilled, document follows'),
|
|
201: ('Created', 'Document created, URL follows'),
|
|
202: ('Accepted',
|
|
'Request accepted, processing continues off-line'),
|
|
203: ('Non-Authoritative Information',
|
|
'Request fulfilled from cache'),
|
|
204: ('No Content', 'Request fulfilled, nothing follows'),
|
|
205: ('Reset Content', 'Clear input form for further input.'),
|
|
206: ('Partial Content', 'Partial content follows.'),
|
|
|
|
300: ('Multiple Choices',
|
|
'Object has several resources -- see URI list'),
|
|
301: ('Moved Permanently',
|
|
'Object moved permanently -- see URI list'),
|
|
302: ('Found', 'Object moved temporarily -- see URI list'),
|
|
303: ('See Other', 'Object moved -- see Method and URL list'),
|
|
304: ('Not Modified',
|
|
'Document has not changed since given time'),
|
|
305: ('Use Proxy',
|
|
'You must use proxy specified in Location to access this '
|
|
'resource.'),
|
|
307: ('Temporary Redirect',
|
|
'Object moved temporarily -- see URI list'),
|
|
|
|
400: ('Bad Request',
|
|
'Bad request syntax or unsupported method'),
|
|
401: ('Unauthorized',
|
|
'No permission -- see authorization schemes'),
|
|
402: ('Payment Required',
|
|
'No payment -- see charging schemes'),
|
|
403: ('Forbidden',
|
|
'Request forbidden -- authorization will not help'),
|
|
404: ('Not Found', 'Nothing matches the given URI'),
|
|
405: ('Method Not Allowed',
|
|
'Specified method is invalid for this resource.'),
|
|
406: ('Not Acceptable', 'URI not available in preferred format.'),
|
|
407: ('Proxy Authentication Required', 'You must authenticate with '
|
|
'this proxy before proceeding.'),
|
|
408: ('Request Timeout', 'Request timed out; try again later.'),
|
|
409: ('Conflict', 'Request conflict.'),
|
|
410: ('Gone',
|
|
'URI no longer exists and has been permanently removed.'),
|
|
411: ('Length Required', 'Client must specify Content-Length.'),
|
|
412: ('Precondition Failed', 'Precondition in headers is false.'),
|
|
413: ('Request Entity Too Large', 'Entity is too large.'),
|
|
414: ('Request-URI Too Long', 'URI is too long.'),
|
|
415: ('Unsupported Media Type',
|
|
'Entity body in unsupported format.'),
|
|
416: ('Requested Range Not Satisfiable',
|
|
'Cannot satisfy request range.'),
|
|
417: ('Expectation Failed',
|
|
'Expect condition could not be satisfied.'),
|
|
428: ('Precondition Required',
|
|
'The origin server requires the request to be conditional.'),
|
|
429: ('Too Many Requests', 'The user has sent too many requests '
|
|
'in a given amount of time ("rate limiting").'),
|
|
431: ('Request Header Fields Too Large',
|
|
'The server is unwilling to process '
|
|
'the request because its header fields are too large.'),
|
|
|
|
500: ('Internal Server Error', 'Server got itself in trouble'),
|
|
501: ('Not Implemented',
|
|
'Server does not support this operation'),
|
|
502: ('Bad Gateway',
|
|
'Invalid responses from another server/proxy.'),
|
|
503: ('Service Unavailable',
|
|
'The server cannot process the request due to a high load'),
|
|
504: ('Gateway Timeout',
|
|
'The gateway server did not receive a timely response'),
|
|
505: ('HTTP Version Not Supported', 'Cannot fulfill request.'),
|
|
511: ('Network Authentication Required',
|
|
'The client needs to authenticate to gain network access.'),
|
|
}
|
|
|
|
class ThreadedSPDYServer(socketserver.ThreadingMixIn,
|
|
socketserver.TCPServer):
|
|
def __init__(self, server_address, RequestHandlerCalss,
|
|
cert_file, key_file):
|
|
self.allow_reuse_address = True
|
|
|
|
self.ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
|
self.ctx.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | \
|
|
ssl.OP_NO_COMPRESSION
|
|
self.ctx.load_cert_chain(cert_file, key_file)
|
|
self.ctx.set_npn_protocols(get_npn_protocols())
|
|
|
|
socketserver.TCPServer.__init__(self, server_address,
|
|
RequestHandlerCalss)
|
|
|
|
def start(self, daemon=False):
|
|
server_thread = threading.Thread(target=self.serve_forever)
|
|
server_thread.daemon = daemon
|
|
server_thread.start()
|
|
|
|
def process_request(self, request, client_address):
|
|
# ThreadingMixIn.process_request() dispatches request and
|
|
# client_address to separate thread. To cleanly shutdown
|
|
# SSL/TLS wrapped socket, we wrap socket here.
|
|
|
|
# SSL/TLS handshake is postponed to each thread.
|
|
request = self.ctx.wrap_socket(\
|
|
request, server_side=True, do_handshake_on_connect=False)
|
|
|
|
socketserver.ThreadingMixIn.process_request(self,
|
|
request, client_address)
|
|
|
|
|
|
# Simple SPDY client implementation. Since this implementation
|
|
# uses TLS NPN, Python 3.3.0 or later is required.
|
|
|
|
from urllib.parse import urlsplit
|
|
|
|
class BaseSPDYStreamHandler:
|
|
def __init__(self, url, fetcher):
|
|
self.url = url
|
|
self.fetcher = fetcher
|
|
self.stream_id = None
|
|
|
|
def on_header(self, nv):
|
|
pass
|
|
|
|
def on_data(self, data):
|
|
pass
|
|
|
|
def on_close(self, status_code):
|
|
pass
|
|
|
|
class UrlFetchError(Exception):
|
|
pass
|
|
|
|
class UrlFetcher:
|
|
def __init__(self, server_address, urls, StreamHandlerClass):
|
|
self.server_address = server_address
|
|
self.handlers = [StreamHandlerClass(url, self) for url in urls]
|
|
self.streams = {}
|
|
self.finished = []
|
|
|
|
self.ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
|
self.ctx.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | \
|
|
ssl.OP_NO_COMPRESSION
|
|
self.ctx.set_npn_protocols(get_npn_protocols())
|
|
|
|
def send_cb(self, session, data):
|
|
return self.sock.send(data)
|
|
|
|
def before_ctrl_send_cb(self, session, frame):
|
|
if frame.frame_type == SYN_STREAM:
|
|
handler = session.get_stream_user_data(frame.stream_id)
|
|
if handler:
|
|
handler.stream_id = frame.stream_id
|
|
self.streams[handler.stream_id] = handler
|
|
|
|
def on_ctrl_recv_cb(self, session, frame):
|
|
if frame.frame_type == SYN_REPLY or frame.frame_type == HEADERS:
|
|
if frame.stream_id in self.streams:
|
|
handler = self.streams[frame.stream_id]
|
|
handler.on_header(frame.nv)
|
|
|
|
def on_data_chunk_recv_cb(self, session, flags, stream_id, data):
|
|
if stream_id in self.streams:
|
|
handler = self.streams[stream_id]
|
|
handler.on_data(data)
|
|
|
|
def on_stream_close_cb(self, session, stream_id, status_code):
|
|
if stream_id in self.streams:
|
|
handler = self.streams[stream_id]
|
|
handler.on_close(status_code)
|
|
del self.streams[stream_id]
|
|
self.finished.append(handler)
|
|
|
|
def connect(self, server_address):
|
|
self.sock = None
|
|
for res in socket.getaddrinfo(server_address[0], server_address[1],
|
|
socket.AF_UNSPEC,
|
|
socket.SOCK_STREAM):
|
|
af, socktype, proto, canonname, sa = res
|
|
try:
|
|
self.sock = socket.socket(af, socktype, proto)
|
|
except OSError as msg:
|
|
self.sock = None
|
|
continue
|
|
try:
|
|
self.sock.connect(sa)
|
|
except OSError as msg:
|
|
self.sock.close()
|
|
self.sock = None
|
|
continue
|
|
break
|
|
else:
|
|
raise UrlFetchError('Could not connect to {}'\
|
|
.format(server_address))
|
|
|
|
def tls_handshake(self):
|
|
self.sock = self.ctx.wrap_socket(self.sock, server_side=False,
|
|
do_handshake_on_connect=False)
|
|
self.sock.do_handshake()
|
|
|
|
self.version = npn_get_version(self.sock.selected_npn_protocol())
|
|
if self.version == 0:
|
|
raise UrlFetchError('NPN failed')
|
|
|
|
def loop(self):
|
|
self.connect(self.server_address)
|
|
try:
|
|
self._loop()
|
|
finally:
|
|
self.sock.shutdown(socket.SHUT_RDWR)
|
|
self.sock.close()
|
|
|
|
def _loop(self):
|
|
self.tls_handshake()
|
|
self.sock.setblocking(False)
|
|
|
|
session = Session(CLIENT,
|
|
self.version,
|
|
send_cb=self.send_cb,
|
|
on_ctrl_recv_cb=self.on_ctrl_recv_cb,
|
|
on_data_chunk_recv_cb=self.on_data_chunk_recv_cb,
|
|
before_ctrl_send_cb=self.before_ctrl_send_cb,
|
|
on_stream_close_cb=self.on_stream_close_cb)
|
|
|
|
session.submit_settings(\
|
|
FLAG_SETTINGS_NONE,
|
|
[(SETTINGS_MAX_CONCURRENT_STREAMS, ID_FLAG_SETTINGS_NONE, 100)]
|
|
)
|
|
|
|
if self.server_address[1] == 443:
|
|
hostport = self.server_address[0]
|
|
else:
|
|
hostport = '{}:{}'.format(self.server_address[0],
|
|
self.server_address[1])
|
|
|
|
for handler in self.handlers:
|
|
res = urlsplit(handler.url)
|
|
if res.path:
|
|
path = res.path
|
|
else:
|
|
path = '/'
|
|
if res.query:
|
|
path = '?'.join([path, res.query])
|
|
|
|
session.submit_request(0,
|
|
[(':method', 'GET'),
|
|
(':scheme', 'https'),
|
|
(':path', path),
|
|
(':version', 'HTTP/1.1'),
|
|
(':host', hostport),
|
|
('accept', '*/*'),
|
|
('user-agent', 'python-spdylay')],
|
|
stream_user_data=handler)
|
|
|
|
while (session.want_read() or session.want_write()) \
|
|
and not len(self.finished) == len(self.handlers):
|
|
want_read = want_write = False
|
|
try:
|
|
data = self.sock.recv(4096)
|
|
if data:
|
|
session.recv(data)
|
|
else:
|
|
break
|
|
except ssl.SSLWantReadError:
|
|
want_read = True
|
|
except ssl.SSLWantWriteError:
|
|
want_write = True
|
|
try:
|
|
session.send()
|
|
except ssl.SSLWantReadError:
|
|
want_read = True
|
|
except ssl.SSLWantWriteError:
|
|
want_write = True
|
|
|
|
if want_read or want_write:
|
|
select.select([self.sock] if want_read else [],
|
|
[self.sock] if want_write else [],
|
|
[])
|
|
|
|
def _urlfetch_session_one(urls, StreamHandlerClass):
|
|
res = urlsplit(urls[0])
|
|
if res.scheme != 'https':
|
|
raise UrlFetchError('Unsupported scheme {}'.format(res.scheme))
|
|
hostname = res.hostname
|
|
port = res.port if res.port else 443
|
|
|
|
f = UrlFetcher((hostname, port), urls, StreamHandlerClass)
|
|
f.loop()
|
|
|
|
def urlfetch(url_or_urls, StreamHandlerClass):
|
|
if isinstance(url_or_urls, str):
|
|
_urlfetch_session_one([url_or_urls], StreamHandlerClass)
|
|
else:
|
|
urls = []
|
|
prev_addr = (None, None)
|
|
for url in url_or_urls:
|
|
res = urlsplit(url)
|
|
port = res.port if res.port else 443
|
|
if prev_addr != (res.hostname, port):
|
|
if urls:
|
|
_urlfetch_session_one(urls, StreamHandlerClass)
|
|
urls = []
|
|
prev_addr = (res.hostname, port)
|
|
urls.append(url)
|
|
if urls:
|
|
_urlfetch_session_one(urls, StreamHandlerClass)
|
|
|
|
except ImportError:
|
|
# No server for 2.x because they lack TLS NPN.
|
|
pass
|