966 lines
33 KiB
Cython
966 lines
33 KiB
Cython
# Based on https://github.com/MagicStack/httptools
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#
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from cpython cimport (
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Py_buffer,
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PyBUF_SIMPLE,
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PyBuffer_Release,
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PyBytes_AsString,
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PyBytes_AsStringAndSize,
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PyObject_GetBuffer,
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)
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from cpython.mem cimport PyMem_Free, PyMem_Malloc
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from libc.limits cimport ULLONG_MAX
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from libc.string cimport memcpy
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from multidict import CIMultiDict as _CIMultiDict, CIMultiDictProxy as _CIMultiDictProxy
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from yarl import URL as _URL
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from aiohttp import hdrs
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from aiohttp.helpers import DEBUG, set_exception
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from .http_exceptions import (
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BadHttpMessage,
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BadHttpMethod,
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BadStatusLine,
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ContentLengthError,
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InvalidHeader,
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InvalidURLError,
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LineTooLong,
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PayloadEncodingError,
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TransferEncodingError,
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)
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from .http_parser import DeflateBuffer as _DeflateBuffer
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from .http_writer import (
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HttpVersion as _HttpVersion,
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HttpVersion10 as _HttpVersion10,
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HttpVersion11 as _HttpVersion11,
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)
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from .streams import EMPTY_PAYLOAD as _EMPTY_PAYLOAD, StreamReader as _StreamReader
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cimport cython
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from aiohttp cimport _cparser as cparser
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include "_headers.pxi"
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from aiohttp cimport _find_header
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cdef frozenset ALLOWED_UPGRADES = frozenset({"websocket"})
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DEF DEFAULT_FREELIST_SIZE = 250
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cdef extern from "Python.h":
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int PyByteArray_Resize(object, Py_ssize_t) except -1
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Py_ssize_t PyByteArray_Size(object) except -1
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char* PyByteArray_AsString(object)
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__all__ = ('HttpRequestParser', 'HttpResponseParser',
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'RawRequestMessage', 'RawResponseMessage')
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cdef object URL = _URL
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cdef object URL_build = URL.build
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cdef object CIMultiDict = _CIMultiDict
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cdef object CIMultiDictProxy = _CIMultiDictProxy
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cdef object HttpVersion = _HttpVersion
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cdef object HttpVersion10 = _HttpVersion10
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cdef object HttpVersion11 = _HttpVersion11
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cdef object SEC_WEBSOCKET_KEY1 = hdrs.SEC_WEBSOCKET_KEY1
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cdef object CONTENT_ENCODING = hdrs.CONTENT_ENCODING
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cdef object EMPTY_PAYLOAD = _EMPTY_PAYLOAD
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cdef object StreamReader = _StreamReader
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cdef object DeflateBuffer = _DeflateBuffer
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cdef tuple EMPTY_FEED_DATA_RESULT = ((), False, b"")
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# RFC 9110 singleton headers — duplicates are rejected in strict mode.
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# In lax mode (response parser default), the check is skipped entirely
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# since real-world servers (e.g. Google APIs, Werkzeug) commonly send
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# duplicate headers like Content-Type or Server.
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cdef frozenset SINGLETON_HEADERS = frozenset({
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hdrs.CONTENT_LENGTH,
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hdrs.CONTENT_LOCATION,
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hdrs.CONTENT_RANGE,
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hdrs.CONTENT_TYPE,
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hdrs.ETAG,
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hdrs.HOST,
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hdrs.MAX_FORWARDS,
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hdrs.SERVER,
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hdrs.TRANSFER_ENCODING,
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hdrs.USER_AGENT,
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})
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cdef inline object extend(object buf, const char* at, size_t length):
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cdef Py_ssize_t s
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cdef char* ptr
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s = PyByteArray_Size(buf)
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PyByteArray_Resize(buf, s + length)
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ptr = PyByteArray_AsString(buf)
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memcpy(ptr + s, at, length)
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DEF METHODS_COUNT = 46;
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cdef list _http_method = []
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for i in range(METHODS_COUNT):
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_http_method.append(
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cparser.llhttp_method_name(<cparser.llhttp_method_t> i).decode('ascii'))
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cdef inline str http_method_str(int i):
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if i < METHODS_COUNT:
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return <str>_http_method[i]
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else:
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return "<unknown>"
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cdef inline object find_header(bytes raw_header):
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cdef Py_ssize_t size
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cdef char *buf
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cdef int idx
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PyBytes_AsStringAndSize(raw_header, &buf, &size)
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idx = _find_header.find_header(buf, size)
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if idx == -1:
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return raw_header.decode('utf-8', 'surrogateescape')
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return headers[idx]
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@cython.freelist(DEFAULT_FREELIST_SIZE)
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cdef class RawRequestMessage:
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cdef readonly str method
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cdef readonly str path
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cdef readonly object version # HttpVersion
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cdef readonly object headers # CIMultiDict
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cdef readonly object raw_headers # tuple
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cdef readonly object should_close
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cdef readonly object compression
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cdef readonly object upgrade
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cdef readonly object chunked
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cdef readonly object url # yarl.URL
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def __init__(self, method, path, version, headers, raw_headers,
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should_close, compression, upgrade, chunked, url):
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self.method = method
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self.path = path
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self.version = version
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self.headers = headers
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self.raw_headers = raw_headers
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self.should_close = should_close
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self.compression = compression
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self.upgrade = upgrade
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self.chunked = chunked
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self.url = url
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def __repr__(self):
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info = []
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info.append(("method", self.method))
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info.append(("path", self.path))
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info.append(("version", self.version))
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info.append(("headers", self.headers))
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info.append(("raw_headers", self.raw_headers))
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info.append(("should_close", self.should_close))
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info.append(("compression", self.compression))
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info.append(("upgrade", self.upgrade))
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info.append(("chunked", self.chunked))
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info.append(("url", self.url))
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sinfo = ', '.join(name + '=' + repr(val) for name, val in info)
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return '<RawRequestMessage(' + sinfo + ')>'
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def _replace(self, **dct):
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cdef RawRequestMessage ret
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ret = _new_request_message(self.method,
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self.path,
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self.version,
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self.headers,
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self.raw_headers,
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self.should_close,
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self.compression,
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self.upgrade,
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self.chunked,
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self.url)
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if "method" in dct:
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ret.method = dct["method"]
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if "path" in dct:
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ret.path = dct["path"]
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if "version" in dct:
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ret.version = dct["version"]
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if "headers" in dct:
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ret.headers = dct["headers"]
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if "raw_headers" in dct:
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ret.raw_headers = dct["raw_headers"]
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if "should_close" in dct:
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ret.should_close = dct["should_close"]
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if "compression" in dct:
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ret.compression = dct["compression"]
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if "upgrade" in dct:
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ret.upgrade = dct["upgrade"]
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if "chunked" in dct:
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ret.chunked = dct["chunked"]
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if "url" in dct:
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ret.url = dct["url"]
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return ret
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cdef _new_request_message(str method,
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str path,
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object version,
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object headers,
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object raw_headers,
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bint should_close,
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object compression,
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bint upgrade,
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bint chunked,
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object url):
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cdef RawRequestMessage ret
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ret = RawRequestMessage.__new__(RawRequestMessage)
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ret.method = method
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ret.path = path
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ret.version = version
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ret.headers = headers
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ret.raw_headers = raw_headers
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ret.should_close = should_close
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ret.compression = compression
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ret.upgrade = upgrade
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ret.chunked = chunked
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ret.url = url
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return ret
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@cython.freelist(DEFAULT_FREELIST_SIZE)
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cdef class RawResponseMessage:
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cdef readonly object version # HttpVersion
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cdef readonly int code
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cdef readonly str reason
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cdef readonly object headers # CIMultiDict
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cdef readonly object raw_headers # tuple
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cdef readonly object should_close
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cdef readonly object compression
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cdef readonly object upgrade
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cdef readonly object chunked
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def __init__(self, version, code, reason, headers, raw_headers,
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should_close, compression, upgrade, chunked):
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self.version = version
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self.code = code
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self.reason = reason
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self.headers = headers
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self.raw_headers = raw_headers
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self.should_close = should_close
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self.compression = compression
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self.upgrade = upgrade
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self.chunked = chunked
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def __repr__(self):
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info = []
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info.append(("version", self.version))
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info.append(("code", self.code))
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info.append(("reason", self.reason))
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info.append(("headers", self.headers))
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info.append(("raw_headers", self.raw_headers))
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info.append(("should_close", self.should_close))
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info.append(("compression", self.compression))
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info.append(("upgrade", self.upgrade))
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info.append(("chunked", self.chunked))
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sinfo = ', '.join(name + '=' + repr(val) for name, val in info)
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return '<RawResponseMessage(' + sinfo + ')>'
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cdef _new_response_message(object version,
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int code,
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str reason,
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object headers,
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object raw_headers,
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bint should_close,
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object compression,
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bint upgrade,
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bint chunked):
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cdef RawResponseMessage ret
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ret = RawResponseMessage.__new__(RawResponseMessage)
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ret.version = version
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ret.code = code
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ret.reason = reason
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ret.headers = headers
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ret.raw_headers = raw_headers
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ret.should_close = should_close
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ret.compression = compression
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ret.upgrade = upgrade
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ret.chunked = chunked
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return ret
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@cython.internal
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cdef class HttpParser:
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cdef:
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cparser.llhttp_t* _cparser
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cparser.llhttp_settings_t* _csettings
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bytes _raw_name
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object _name
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bytes _raw_value
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bint _has_value
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int _header_name_size
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readonly object protocol
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object _loop
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object _timer
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size_t _max_line_size
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size_t _max_field_size
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size_t _max_headers
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bint _response_with_body
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bint _read_until_eof
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bint _lax
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bytes _tail
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bint _started
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object _url
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bytearray _buf
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str _path
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str _reason
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list _headers
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set _seen_singletons
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list _raw_headers
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bint _upgraded
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list _messages
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bint _more_data_available
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bint _paused
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Py_ssize_t _msg_in_flight
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Py_ssize_t _max_msg_queue_size
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bint _eof_pending
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object _payload
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unsigned long long _content_length_expected
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bint _payload_error
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object _payload_exception
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object _last_error
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bint _auto_decompress
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int _limit
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str _content_encoding
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Py_buffer py_buf
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def __cinit__(self):
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self._cparser = <cparser.llhttp_t*> \
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PyMem_Malloc(sizeof(cparser.llhttp_t))
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if self._cparser is NULL:
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raise MemoryError()
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self._csettings = <cparser.llhttp_settings_t*> \
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PyMem_Malloc(sizeof(cparser.llhttp_settings_t))
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if self._csettings is NULL:
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raise MemoryError()
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def __dealloc__(self):
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PyMem_Free(self._cparser)
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PyMem_Free(self._csettings)
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cdef _init(
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self, cparser.llhttp_type mode,
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object protocol, object loop, int limit,
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object timer=None,
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size_t max_line_size=8190, size_t max_headers=128,
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size_t max_field_size=8190, payload_exception=None,
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bint response_with_body=True, bint read_until_eof=False,
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bint auto_decompress=True,
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Py_ssize_t max_msg_queue_size=0,
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):
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cparser.llhttp_settings_init(self._csettings)
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cparser.llhttp_init(self._cparser, mode, self._csettings)
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self._cparser.data = <void*>self
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self._cparser.content_length = 0
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self._content_length_expected = 0
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self.protocol = protocol
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self._loop = loop
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self._timer = timer
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self._buf = bytearray()
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self._more_data_available = False
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self._paused = False
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self._msg_in_flight = 0
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self._max_msg_queue_size = max_msg_queue_size
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self._eof_pending = False
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self._payload = None
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self._payload_error = 0
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self._payload_exception = payload_exception
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self._messages = []
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self._raw_name = b""
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self._raw_value = b""
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self._tail = b""
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self._has_value = False
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self._header_name_size = 0
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self._max_line_size = max_line_size
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self._max_headers = max_headers
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self._max_field_size = max_field_size
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self._response_with_body = response_with_body
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self._read_until_eof = read_until_eof
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self._upgraded = False
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self._auto_decompress = auto_decompress
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self._content_encoding = None
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self._lax = False
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self._seen_singletons = set()
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self._csettings.on_url = cb_on_url
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self._csettings.on_status = cb_on_status
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self._csettings.on_header_field = cb_on_header_field
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self._csettings.on_header_value = cb_on_header_value
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self._csettings.on_headers_complete = cb_on_headers_complete
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self._csettings.on_body = cb_on_body
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self._csettings.on_message_begin = cb_on_message_begin
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self._csettings.on_message_complete = cb_on_message_complete
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self._csettings.on_chunk_header = cb_on_chunk_header
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self._csettings.on_chunk_complete = cb_on_chunk_complete
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self._last_error = None
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self._limit = limit
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cdef _process_header(self):
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cdef str value
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if self._raw_name != b"":
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name = find_header(self._raw_name)
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value = self._raw_value.decode('utf-8', 'surrogateescape')
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# reject null bytes in header values - matches the Python parser
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# check at http_parser.py. llhttp in lenient mode doesn't reject
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# these itself, so we need to catch them here.
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# ref: RFC 9110 section 5.5 (CTL chars forbidden in field values)
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if "\x00" in value:
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raise InvalidHeader(self._raw_value)
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if not self._lax and name in SINGLETON_HEADERS:
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if name in self._seen_singletons:
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raise BadHttpMessage(f"Duplicate '{name}' header found.")
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self._seen_singletons.add(name)
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self._headers.append((name, value))
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if len(self._headers) > self._max_headers:
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raise BadHttpMessage("Too many headers received")
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if name is CONTENT_ENCODING:
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self._content_encoding = value
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self._has_value = False
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self._header_name_size = 0
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self._raw_headers.append((self._raw_name, self._raw_value))
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self._raw_name = b""
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self._raw_value = b""
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cdef _on_header_field(self, char* at, size_t length):
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if self._has_value:
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self._process_header()
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if self._raw_name == b"":
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self._raw_name = at[:length]
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else:
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self._raw_name += at[:length]
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cdef _on_header_value(self, char* at, size_t length):
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if self._raw_value == b"":
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self._raw_value = at[:length]
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else:
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self._raw_value += at[:length]
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self._has_value = True
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cdef _on_headers_complete(self):
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cdef str h_upg
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cdef str enc
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self._process_header()
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http_version = self.http_version()
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should_close = not cparser.llhttp_should_keep_alive(self._cparser)
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upgrade = self._cparser.upgrade
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chunked = self._cparser.flags & cparser.F_CHUNKED
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raw_headers = tuple(self._raw_headers)
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headers = CIMultiDictProxy(CIMultiDict(self._headers))
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if self._cparser.type == cparser.HTTP_REQUEST:
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if http_version == HttpVersion11 and hdrs.HOST not in headers:
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raise BadHttpMessage("Missing 'Host' header in request.")
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h_upg = headers.get("upgrade", "")
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if (upgrade and h_upg.isascii() and h_upg.lower() in ALLOWED_UPGRADES) or self._cparser.method == cparser.HTTP_CONNECT:
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self._upgraded = True
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else:
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if upgrade and self._cparser.status_code == 101:
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self._upgraded = True
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# do not support old websocket spec
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if SEC_WEBSOCKET_KEY1 in headers:
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raise InvalidHeader(SEC_WEBSOCKET_KEY1)
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encoding = None
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enc = self._content_encoding
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if enc is not None:
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self._content_encoding = None
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if enc.isascii() and enc.lower() in {"gzip", "deflate", "br", "zstd"}:
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encoding = enc
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|
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if self._cparser.type == cparser.HTTP_REQUEST:
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method = http_method_str(self._cparser.method)
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msg = _new_request_message(
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method, self._path,
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http_version, headers, raw_headers,
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should_close, encoding, upgrade, chunked, self._url)
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else:
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msg = _new_response_message(
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http_version, self._cparser.status_code, self._reason,
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headers, raw_headers, should_close, encoding,
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upgrade, chunked)
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|
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if (
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self._response_with_body
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and (
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ULLONG_MAX > self._cparser.content_length > 0 or chunked or
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self._cparser.method == cparser.HTTP_CONNECT or
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(self._cparser.status_code >= 199 and
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self._cparser.content_length == 0 and
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self._read_until_eof)
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)
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):
|
|
payload = StreamReader(
|
|
self.protocol, timer=self._timer, loop=self._loop,
|
|
limit=self._limit)
|
|
else:
|
|
payload = EMPTY_PAYLOAD
|
|
|
|
self._payload = payload
|
|
self._content_length_expected = self._cparser.content_length
|
|
if encoding is not None and self._auto_decompress:
|
|
self._payload = DeflateBuffer(payload, encoding, max_decompress_size=self._limit)
|
|
|
|
self._messages.append((msg, payload))
|
|
|
|
cdef _on_message_complete(self):
|
|
self._payload.feed_eof()
|
|
self._payload = None
|
|
|
|
cdef _on_chunk_header(self):
|
|
self._payload.begin_http_chunk_receiving()
|
|
|
|
cdef _on_chunk_complete(self):
|
|
self._payload.end_http_chunk_receiving()
|
|
|
|
cdef object _on_status_complete(self):
|
|
pass
|
|
|
|
cdef inline http_version(self):
|
|
cdef cparser.llhttp_t* parser = self._cparser
|
|
|
|
if parser.http_major == 1:
|
|
if parser.http_minor == 0:
|
|
return HttpVersion10
|
|
elif parser.http_minor == 1:
|
|
return HttpVersion11
|
|
|
|
return HttpVersion(parser.http_major, parser.http_minor)
|
|
|
|
### Public API ###
|
|
|
|
def pause_reading(self):
|
|
assert self._payload is not None
|
|
self._paused = True
|
|
|
|
def message_consumed(self):
|
|
# Protocol drained a queued message; free a slot for parsing.
|
|
if self._msg_in_flight > 0:
|
|
self._msg_in_flight -= 1
|
|
|
|
def feed_eof(self):
|
|
cdef bytes desc
|
|
|
|
if self._payload is not None:
|
|
if self._cparser.flags & cparser.F_CHUNKED:
|
|
raise TransferEncodingError(
|
|
"Not enough data to satisfy transfer length header.")
|
|
elif self._cparser.flags & cparser.F_CONTENT_LENGTH:
|
|
received = self._content_length_expected - self._cparser.content_length
|
|
raise ContentLengthError(
|
|
f"Not enough data to satisfy content length header "
|
|
f"(received {received} of {self._content_length_expected} bytes).")
|
|
elif cparser.llhttp_get_errno(self._cparser) != cparser.HPE_OK:
|
|
desc = cparser.llhttp_get_error_reason(self._cparser)
|
|
raise PayloadEncodingError(desc.decode('latin-1'))
|
|
else:
|
|
self._eof_pending = True
|
|
while self._more_data_available:
|
|
if self._paused:
|
|
self._paused = False
|
|
return # Will resume via feed_data(b"") later
|
|
self._more_data_available = self._payload.feed_data(b"", 0)
|
|
self._payload.feed_eof()
|
|
self._payload = None
|
|
self._more_data_available = False
|
|
self._eof_pending = False
|
|
elif self._started:
|
|
self._on_headers_complete()
|
|
if self._messages:
|
|
return self._messages[-1][0]
|
|
|
|
def feed_data(self, incoming_data):
|
|
cdef:
|
|
size_t data_len
|
|
size_t nb
|
|
char* base
|
|
cdef cparser.llhttp_errno_t errno
|
|
cdef bytes data
|
|
|
|
# Proactor loop sends bytearray.
|
|
# Ensure cython sees `data` as bytes
|
|
if type(incoming_data) is not bytes:
|
|
data = bytes(incoming_data)
|
|
else:
|
|
data = incoming_data
|
|
|
|
if self._tail:
|
|
data, self._tail = self._tail + data, b""
|
|
|
|
if self._more_data_available:
|
|
result = cb_on_body(self._cparser, b"", 0)
|
|
if result is cparser.HPE_PAUSED:
|
|
self._tail = data
|
|
return EMPTY_FEED_DATA_RESULT
|
|
|
|
if self._eof_pending:
|
|
self._payload.feed_eof()
|
|
self._payload = None
|
|
self._eof_pending = False
|
|
# We can't have new messages here, otherwise we wouldn't have
|
|
# received EOF.
|
|
return EMPTY_FEED_DATA_RESULT
|
|
|
|
PyObject_GetBuffer(data, &self.py_buf, PyBUF_SIMPLE)
|
|
# Cache buffer pointer before PyBuffer_Release to avoid use-after-release.
|
|
base = <char*>self.py_buf.buf
|
|
data_len = <size_t>self.py_buf.len
|
|
|
|
errno = cparser.llhttp_execute(
|
|
self._cparser,
|
|
base,
|
|
data_len)
|
|
|
|
if errno is cparser.HPE_PAUSED_UPGRADE:
|
|
cparser.llhttp_resume_after_upgrade(self._cparser)
|
|
nb = cparser.llhttp_get_error_pos(self._cparser) - base
|
|
elif errno is cparser.HPE_PAUSED:
|
|
cparser.llhttp_resume(self._cparser)
|
|
pos = cparser.llhttp_get_error_pos(self._cparser) - base
|
|
self._tail = data[pos:]
|
|
|
|
PyBuffer_Release(&self.py_buf)
|
|
|
|
if errno not in (cparser.HPE_OK, cparser.HPE_PAUSED, cparser.HPE_PAUSED_UPGRADE):
|
|
if self._payload_error == 0:
|
|
if self._last_error is not None:
|
|
ex = self._last_error
|
|
self._last_error = None
|
|
else:
|
|
after = cparser.llhttp_get_error_pos(self._cparser)
|
|
before = data[:after - base]
|
|
after_b = after.split(b"\r\n", 1)[0]
|
|
before = before.rsplit(b"\r\n", 1)[-1]
|
|
data = before + after_b
|
|
pointer = " " * (len(repr(before))-1) + "^"
|
|
ex = parser_error_from_errno(self._cparser, data, pointer)
|
|
self._payload = None
|
|
raise ex
|
|
|
|
if self._messages:
|
|
messages = self._messages
|
|
self._messages = []
|
|
else:
|
|
messages = ()
|
|
|
|
if self._upgraded:
|
|
return messages, True, data[nb:]
|
|
if not messages: # Shortcut to reduce Python overhead
|
|
return EMPTY_FEED_DATA_RESULT
|
|
return messages, False, b""
|
|
|
|
def set_upgraded(self, val):
|
|
self._upgraded = val
|
|
|
|
|
|
cdef class HttpRequestParser(HttpParser):
|
|
|
|
def __init__(
|
|
self, protocol, loop, int limit, timer=None,
|
|
size_t max_line_size=8190, size_t max_headers=128,
|
|
size_t max_field_size=8190, payload_exception=None,
|
|
bint response_with_body=True, bint read_until_eof=False,
|
|
bint auto_decompress=True, Py_ssize_t max_msg_queue_size=0,
|
|
):
|
|
self._init(cparser.HTTP_REQUEST, protocol, loop, limit, timer,
|
|
max_line_size, max_headers, max_field_size,
|
|
payload_exception, response_with_body, read_until_eof,
|
|
auto_decompress, max_msg_queue_size)
|
|
|
|
cdef object _on_status_complete(self):
|
|
cdef int idx1, idx2
|
|
if not self._buf:
|
|
return
|
|
self._path = self._buf.decode('utf-8', 'surrogateescape')
|
|
try:
|
|
idx3 = len(self._path)
|
|
if self._cparser.method == cparser.HTTP_CONNECT:
|
|
# authority-form,
|
|
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.3
|
|
self._url = URL.build(authority=self._path, encoded=True)
|
|
elif idx3 > 1 and self._path[0] == '/':
|
|
# origin-form,
|
|
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1
|
|
idx1 = self._path.find("?")
|
|
if idx1 == -1:
|
|
query = ""
|
|
idx2 = self._path.find("#")
|
|
if idx2 == -1:
|
|
path = self._path
|
|
fragment = ""
|
|
else:
|
|
path = self._path[0: idx2]
|
|
fragment = self._path[idx2+1:]
|
|
|
|
else:
|
|
path = self._path[0:idx1]
|
|
idx1 += 1
|
|
idx2 = self._path.find("#", idx1+1)
|
|
if idx2 == -1:
|
|
query = self._path[idx1:]
|
|
fragment = ""
|
|
else:
|
|
query = self._path[idx1: idx2]
|
|
fragment = self._path[idx2+1:]
|
|
|
|
self._url = URL.build(
|
|
path=path,
|
|
query_string=query,
|
|
fragment=fragment,
|
|
encoded=True,
|
|
)
|
|
else:
|
|
# absolute-form for proxy maybe,
|
|
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.2
|
|
self._url = URL(self._path, encoded=True)
|
|
finally:
|
|
PyByteArray_Resize(self._buf, 0)
|
|
|
|
|
|
cdef class HttpResponseParser(HttpParser):
|
|
|
|
def __init__(
|
|
self, protocol, loop, int limit, timer=None,
|
|
size_t max_line_size=8190, size_t max_headers=128,
|
|
size_t max_field_size=8190, payload_exception=None,
|
|
bint response_with_body=True, bint read_until_eof=False,
|
|
bint auto_decompress=True
|
|
):
|
|
self._init(cparser.HTTP_RESPONSE, protocol, loop, limit, timer,
|
|
max_line_size, max_headers, max_field_size,
|
|
payload_exception, response_with_body, read_until_eof,
|
|
auto_decompress)
|
|
# Use strict parsing on dev mode, so users are warned about broken servers.
|
|
if not DEBUG:
|
|
cparser.llhttp_set_lenient_headers(self._cparser, 1)
|
|
cparser.llhttp_set_lenient_optional_cr_before_lf(self._cparser, 1)
|
|
cparser.llhttp_set_lenient_spaces_after_chunk_size(self._cparser, 1)
|
|
self._lax = True
|
|
|
|
cdef object _on_status_complete(self):
|
|
if self._buf:
|
|
self._reason = self._buf.decode('utf-8', 'surrogateescape')
|
|
PyByteArray_Resize(self._buf, 0)
|
|
else:
|
|
self._reason = self._reason or ''
|
|
|
|
cdef int cb_on_message_begin(cparser.llhttp_t* parser) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
|
|
pyparser._started = True
|
|
pyparser._headers = []
|
|
pyparser._seen_singletons = set()
|
|
pyparser._raw_headers = []
|
|
PyByteArray_Resize(pyparser._buf, 0)
|
|
pyparser._path = None
|
|
pyparser._reason = None
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_url(cparser.llhttp_t* parser,
|
|
const char *at, size_t length) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
if len(pyparser._buf) + length > pyparser._max_line_size:
|
|
status = pyparser._buf + at[:length]
|
|
raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)
|
|
extend(pyparser._buf, at, length)
|
|
except BaseException as ex:
|
|
pyparser._last_error = ex
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_status(cparser.llhttp_t* parser,
|
|
const char *at, size_t length) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
if len(pyparser._buf) + length > pyparser._max_line_size:
|
|
reason = pyparser._buf + at[:length]
|
|
raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)
|
|
extend(pyparser._buf, at, length)
|
|
except BaseException as ex:
|
|
pyparser._last_error = ex
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_header_field(cparser.llhttp_t* parser,
|
|
const char *at, size_t length) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
cdef Py_ssize_t size
|
|
try:
|
|
pyparser._on_status_complete()
|
|
size = len(pyparser._raw_name) + length
|
|
if size > pyparser._max_field_size:
|
|
name = pyparser._raw_name + at[:length]
|
|
raise LineTooLong(name[:100] + b"...", pyparser._max_field_size)
|
|
pyparser._header_name_size = size
|
|
pyparser._on_header_field(at, length)
|
|
except BaseException as ex:
|
|
pyparser._last_error = ex
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_header_value(cparser.llhttp_t* parser,
|
|
const char *at, size_t length) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
cdef Py_ssize_t size
|
|
try:
|
|
size = len(pyparser._raw_value) + length
|
|
if pyparser._header_name_size + size > pyparser._max_field_size:
|
|
value = pyparser._raw_value + at[:length]
|
|
raise LineTooLong(value[:100] + b"...", pyparser._max_field_size)
|
|
pyparser._on_header_value(at, length)
|
|
except BaseException as ex:
|
|
pyparser._last_error = ex
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_headers_complete(cparser.llhttp_t* parser) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
pyparser._on_status_complete()
|
|
pyparser._on_headers_complete()
|
|
except BaseException as exc:
|
|
pyparser._last_error = exc
|
|
return -1
|
|
else:
|
|
if pyparser._upgraded or pyparser._cparser.method == cparser.HTTP_CONNECT:
|
|
return 2
|
|
if not pyparser._response_with_body:
|
|
return 1
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_body(cparser.llhttp_t* parser,
|
|
const char *at, size_t length) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
cdef bytes body = at[:length]
|
|
while body or pyparser._more_data_available:
|
|
try:
|
|
pyparser._more_data_available = pyparser._payload.feed_data(body, length)
|
|
except BaseException as underlying_exc:
|
|
reraised_exc = underlying_exc
|
|
if pyparser._payload_exception is not None:
|
|
reraised_exc = pyparser._payload_exception(str(underlying_exc))
|
|
|
|
set_exception(pyparser._payload, reraised_exc, underlying_exc)
|
|
|
|
pyparser._payload_error = 1
|
|
pyparser._paused = False
|
|
return -1
|
|
body = b""
|
|
length = 0
|
|
|
|
if pyparser._paused:
|
|
pyparser._paused = False
|
|
return cparser.HPE_PAUSED
|
|
pyparser._paused = False
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_message_complete(cparser.llhttp_t* parser) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
pyparser._started = False
|
|
pyparser._on_message_complete()
|
|
except BaseException as exc:
|
|
pyparser._last_error = exc
|
|
return -1
|
|
else:
|
|
if pyparser._max_msg_queue_size:
|
|
pyparser._msg_in_flight += 1
|
|
if pyparser._msg_in_flight >= pyparser._max_msg_queue_size:
|
|
# Queue full: pause llhttp between messages. feed_data() buffers
|
|
# the remainder as tail; resumes once the queue drains.
|
|
return cparser.HPE_PAUSED
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_chunk_header(cparser.llhttp_t* parser) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
pyparser._on_chunk_header()
|
|
except BaseException as exc:
|
|
pyparser._last_error = exc
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef int cb_on_chunk_complete(cparser.llhttp_t* parser) except -1:
|
|
cdef HttpParser pyparser = <HttpParser>parser.data
|
|
try:
|
|
pyparser._on_chunk_complete()
|
|
except BaseException as exc:
|
|
pyparser._last_error = exc
|
|
return -1
|
|
else:
|
|
return 0
|
|
|
|
|
|
cdef parser_error_from_errno(cparser.llhttp_t* parser, data, pointer):
|
|
cdef cparser.llhttp_errno_t errno = cparser.llhttp_get_errno(parser)
|
|
cdef bytes desc = cparser.llhttp_get_error_reason(parser)
|
|
|
|
err_msg = "{}:\n\n {!r}\n {}".format(desc.decode("latin-1"), data, pointer)
|
|
|
|
if errno in {cparser.HPE_CB_MESSAGE_BEGIN,
|
|
cparser.HPE_CB_HEADERS_COMPLETE,
|
|
cparser.HPE_CB_MESSAGE_COMPLETE,
|
|
cparser.HPE_CB_CHUNK_HEADER,
|
|
cparser.HPE_CB_CHUNK_COMPLETE,
|
|
cparser.HPE_INVALID_HEADER_TOKEN,
|
|
cparser.HPE_INVALID_CONTENT_LENGTH,
|
|
cparser.HPE_INVALID_CHUNK_SIZE,
|
|
cparser.HPE_INVALID_EOF_STATE,
|
|
cparser.HPE_INVALID_TRANSFER_ENCODING}:
|
|
return BadHttpMessage(err_msg)
|
|
elif errno == cparser.HPE_INVALID_METHOD:
|
|
if data.startswith(b"\x16\x03"):
|
|
return BadHttpMethod(error="Received HTTPS traffic on an HTTP port")
|
|
return BadHttpMethod(error=err_msg)
|
|
elif errno in {cparser.HPE_INVALID_STATUS,
|
|
cparser.HPE_INVALID_VERSION,
|
|
cparser.HPE_INVALID_CONSTANT}:
|
|
return BadStatusLine(error=f"Bad status line:\n {err_msg}")
|
|
elif errno == cparser.HPE_INVALID_URL:
|
|
return InvalidURLError(err_msg)
|
|
|
|
return BadHttpMessage(err_msg)
|