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Python ssl.SSL_ERROR_SYSCALL属性代码示例

本文整理汇总了Python中ssl.SSL_ERROR_SYSCALL属性的典型用法代码示例。如果您正苦于以下问题:Python ssl.SSL_ERROR_SYSCALL属性的具体用法?Python ssl.SSL_ERROR_SYSCALL怎么用?Python ssl.SSL_ERROR_SYSCALL使用的例子?那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在ssl的用法示例。


在下文中一共展示了ssl.SSL_ERROR_SYSCALL属性的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: feed_appdata

# 需要导入模块: import ssl [as 别名]
# 或者: from ssl import SSL_ERROR_SYSCALL [as 别名]
def feed_appdata(self, data, offset=0):
        """Feed plaintext data into the pipe.

        Return an (ssldata, offset) tuple. The ssldata element is a list of
        buffers containing record level data that needs to be sent to the
        remote SSL instance. The offset is the number of plaintext bytes that
        were processed, which may be less than the length of data.

        NOTE: In case of short writes, this call MUST be retried with the SAME
        buffer passed into the *data* argument (i.e. the id() must be the
        same). This is an OpenSSL requirement. A further particularity is that
        a short write will always have offset == 0, because the _ssl module
        does not enable partial writes. And even though the offset is zero,
        there will still be encrypted data in ssldata.
        """
        assert 0 <= offset <= len(data)
        if self._state == _UNWRAPPED:
            # pass through data in unwrapped mode
            if offset < len(data):
                ssldata = [data[offset:]]
            else:
                ssldata = []
            return (ssldata, len(data))

        ssldata = []
        view = memoryview(data)
        while True:
            self._need_ssldata = False
            try:
                if offset < len(view):
                    offset += self._sslobj.write(view[offset:])
            except ssl.SSLError as exc:
                # It is not allowed to call write() after unwrap() until the
                # close_notify is acknowledged. We return the condition to the
                # caller as a short write.
                if exc.reason == 'PROTOCOL_IS_SHUTDOWN':
                    exc.errno = ssl.SSL_ERROR_WANT_READ
                if exc.errno not in (ssl.SSL_ERROR_WANT_READ,
                                     ssl.SSL_ERROR_WANT_WRITE,
                                     ssl.SSL_ERROR_SYSCALL):
                    raise
                self._need_ssldata = (exc.errno == ssl.SSL_ERROR_WANT_READ)

            # See if there's any record level data back for us.
            if self._outgoing.pending:
                ssldata.append(self._outgoing.read())
            if offset == len(view) or self._need_ssldata:
                break
        return (ssldata, offset) 
开发者ID:Microvellum,项目名称:Fluid-Designer,代码行数:51,代码来源:sslproto.py

示例2: feed_appdata

# 需要导入模块: import ssl [as 别名]
# 或者: from ssl import SSL_ERROR_SYSCALL [as 别名]
def feed_appdata(self, data, offset=0):
        """Feed plaintext data into the pipe.

        Return an (ssldata, offset) tuple. The ssldata element is a list of
        buffers containing record level data that needs to be sent to the
        remote SSL instance. The offset is the number of plaintext bytes that
        were processed, which may be less than the length of data.

        NOTE: In case of short writes, this call MUST be retried with the SAME
        buffer passed into the *data* argument (i.e. the id() must be the
        same). This is an OpenSSL requirement. A further particularity is that
        a short write will always have offset == 0, because the _ssl module
        does not enable partial writes. And even though the offset is zero,
        there will still be encrypted data in ssldata.
        """
        assert 0 <= offset <= len(data)
        if self._state == _UNWRAPPED:
            # pass through data in unwrapped mode
            if offset < len(data):
                ssldata = [data[offset:]]
            else:
                ssldata = []
            return (ssldata, len(data))

        ssldata = []
        view = memoryview(data)
        while True:
            self._need_ssldata = False
            try:
                if offset < len(view):
                    offset += self._sslobj.write(view[offset:])
            except ssl.SSLError as exc:
                # It is not allowed to call write() after unwrap() until the
                # close_notify is acknowledged. We return the condition to the
                # caller as a short write.
                exc_errno = getattr(exc, 'errno', None)
                if exc.reason == 'PROTOCOL_IS_SHUTDOWN':
                    exc_errno = exc.errno = ssl.SSL_ERROR_WANT_READ
                if exc_errno not in (ssl.SSL_ERROR_WANT_READ,
                                     ssl.SSL_ERROR_WANT_WRITE,
                                     ssl.SSL_ERROR_SYSCALL):
                    raise
                self._need_ssldata = (exc_errno == ssl.SSL_ERROR_WANT_READ)

            # See if there's any record level data back for us.
            if self._outgoing.pending:
                ssldata.append(self._outgoing.read())
            if offset == len(view) or self._need_ssldata:
                break
        return (ssldata, offset) 
开发者ID:CedricGuillemet,项目名称:Imogen,代码行数:52,代码来源:sslproto.py


注:本文中的ssl.SSL_ERROR_SYSCALL属性示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。