WO2011020364A1 - 一种事件发送方法及系统以及相关设备 - Google Patents
一种事件发送方法及系统以及相关设备 Download PDFInfo
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- WO2011020364A1 WO2011020364A1 PCT/CN2010/073820 CN2010073820W WO2011020364A1 WO 2011020364 A1 WO2011020364 A1 WO 2011020364A1 CN 2010073820 W CN2010073820 W CN 2010073820W WO 2011020364 A1 WO2011020364 A1 WO 2011020364A1
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- WO
- WIPO (PCT)
- Prior art keywords
- event
- control point
- receiving
- permission
- subscription
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1416—Event detection, e.g. attack signature detection
Definitions
- the present invention relates to the field of communications, and in particular, to an event sending method and system, and related devices. Background technique
- UPnP Universal Plug and Play
- CP Control Point
- An event sending method in the prior art is: during the operation of the home network device, possibly due to
- the home network device sends the event to the CP that subscribed to the event.
- Embodiments of the present invention provide an event sending method and system, and related devices, which can improve the security of information transmission.
- the event sending method provided by the embodiment of the present invention includes: determining an event level corresponding to the event when an event is generated; determining a control point subscribed to the event, and an event receiving permission of the control point; according to the event level and the location
- the event receiving authority of the control point sends the event to the control point.
- the event sending system provided by the embodiment of the present invention includes: a control point, configured to receive an event; and a device, configured to determine an event level corresponding to the event when the event is generated, determine a control point subscribed to the event, and the control point.
- the event receiving permission sends the event to the control point according to the event level and the event receiving right of the control point.
- the device provided by the embodiment of the present invention includes: a determining unit, configured to determine an event level corresponding to the event when an event is generated, and determine a control point subscribed to the event and an event receiving permission of the control point; And sending the event to the control point according to an event level and an event receiving permission of the control point.
- the embodiments of the present invention have the following advantages:
- the event after the device determines the event receiving permission of the control point subscribed to the event, the event can be sent to the control point according to the event level and the event receiving right of the control point, so that the event containing the private information can be reduced.
- FIG. 1 is a schematic diagram of an embodiment of an event sending method according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of another embodiment of an event sending method according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of another embodiment of an event sending method according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of another embodiment of an event sending method according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of an embodiment of an event sending system according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of an embodiment of a device according to an embodiment of the present invention.
- the embodiments of the present invention provide an event sending method and system, and related devices, which are used to improve the security of information transmission.
- an embodiment of an event sending method in an embodiment of the present invention includes:
- the event level corresponding to the event is determined.
- an event may be caused due to a configuration modification of the device by the control point or a change in the operating state of the device.
- Each service can correspond to a function of the device. For example, if the device has software management functions, including software installation, uninstallation, update, etc., one service in the device can be "software management". When the device performs operations such as installation, uninstallation, and update on the software, a corresponding event is generated.
- the event may record event data, operation time, operation object, operation result, object information, and the like.
- the device Once the device has generated an event, it can determine the event level for that event.
- the device may determine the control point subscribed to the event and the event receiving permission of the control point, and the specific determining manner will be described in detail in the subsequent embodiments.
- step 101 may be performed first, or step 102 may be performed first, which is not limited herein.
- the event may be sent to the control point according to the event level and the event receiving permission of the control point, so that the event containing the private information may be reduced by the control point with lower authority. Or the possibility of illegal control point acquisition, thereby improving the security of information transmission.
- the following describes the processing procedure of the device after the event is generated.
- the event sending method in the embodiment of the present invention is described together with the event subscription process of the control point.
- FIG. 2 another embodiment of the event sending method in the embodiment of the present invention is described. Includes:
- the control point acquires a uniform resource locator (URL, Uniform Resource Locator) for event subscription;
- URL Uniform Resource Locator
- control point can obtain the URL in the following two ways:
- the control point After receiving the SSDP announcement message sent by the UPnP device, the control point reads the packet in the packet.
- the UPnP device After receiving the HTTP GET request, the UPnP device feeds back a device description file to the control point, where the device description file carries an event.
- the control point sends an HTTP GET request to the DDD URL, and the UPnP device receives the HTTP
- the device description file is fed back to the control point, and the device description file carries the URL of the event subscription and the URL of the security event subscription.
- the UPnP device is used as an example of the device.
- other devices such as other types of home network devices, or Consumer electronics equipment is not limited here.
- the control point establishes a data connection with the UPnP device.
- a data connection is established between the control point and the UPnP device, which may be a Secure Socket Layer (SSL) connection.
- SSL Secure Socket Layer
- the data connection may be a TLS (Transport Layer Security) connection or other data connection, and the specific type is not limited herein.
- TLS Transport Layer Security
- the control point sends a subscription message to the URL through the data connection.
- control message may be sent to the URL through the data connection, and the following methods may be used:
- the UPnP device after receiving the subscription message sent by the control point, the UPnP device can determine the event receiving permission of the control point, and specifically, the event receiving permission of the control point can be determined according to the access authority of the control point.
- the access authority of the control point may be an access right of the control point in an access control list (ACL, Access Control List), or an access obtained by the control point through user login. Permissions.
- ACL Access Control List
- the access authority of the control point in the access control list refers to the access right that the control point has on the UPnP device, that is, which services and control commands the control point can access on the device. And content.
- the access control list is typically stored in the UPnP device to maintain access to the device by one or more control points. For example, if the access point of the control point in the access control list saved by the UPnP device is Basic (Role), the control point has basic access rights to the UPnP device.
- Basic Role
- the access authority obtained by the user login through the user login means that when the control point allows the user to log in, if the advanced user logs in to the control point, the access authority of the control point can be increased to the access permission of the advanced user. For example, if an administrator user logs in to a control point that has basic permissions in the access control list, the access rights of the control point are promoted to the administrator (Admin) permission.
- Admin administrator
- the URL of the control point when the control request is sent may be further considered, thereby finally determining the event of the control point. Receive permission.
- the device may also first determine: if the control point sends the subscription message to the URL of the event subscription through HTTP, the event receiving permission of the control point is determined to be public regardless of whether the control point has a higher access right; When the control point sends the subscription message to the URL of the security event subscription through HTTPS, the event receiving permission is further determined according to the access authority of the control point.
- a control point whose access authority is an administrator sends a subscription message to the URL of the event subscription through HTTP. Since the URL subscribed to the event can only be responsible for sending an event with a low event level, the UPnP device determines the event receiving permission of the control point. For the public (Public).
- the information of the control point may also be stored in the subscriber list, and the information of the control point includes at least the event receiving permission of the control point.
- the device determines the control point.
- the event receiving permission of the control point can also be determined directly from the subscriber list.
- the event after the event receiving authority of the control point is determined, the event can be sent to the control point according to the event level and the event receiving authority of the control point.
- the event receiving permission corresponding to the event level when the event receiving permission corresponding to the event level is lower than or equal to the event receiving permission of the control point, the event is sent to the control point, and the event receiving permission corresponding to the event level is higher than the event receiving permission of the control point. When an event is not sent to the control point.
- the level of an event is intermediate, and the corresponding event receiving permission is basic. If the event receiving permission of the control point is basic, the event receiving permission corresponding to the event level is equal to the event receiving permission of the control point, and then The control point sends the event. If the event receiving permission of the control point is public, the event receiving authority corresponding to the event level is higher than the event receiving permission of the control point, and the event cannot be sent to the control point.
- the control point is a logged-in device
- the user can log in to the control point to change the access authority of the control point, and further change the event receiving permission of the control point, for example, the administrator user logs in.
- a control point with basic permissions in the access control list the access rights of the control point will be promoted to administrator rights, and the event receiving permission of the control point is also promoted to administrator rights, when the administrator user logs out
- the access permission of the control point is restored to the basic permission, and the event receiving permission of the control point is also restored to the basic permission.
- the event may be sent to the control point according to the event level and the event receiving permission of the control point, so that the event containing the private information may be reduced by the control point with lower authority.
- illegal control points to obtain the possibility to improve the security of information transmission;
- control point can obtain the URL of the event subscription from the UPnP device in multiple manners, thereby improving the flexibility of the subscription process;
- the UPnP device can adjust the event receiving authority of the control point according to the user login and logout conditions, thereby improving the flexibility of the data transmission process.
- another embodiment of the subscription method in the embodiment of the present invention includes:
- the basic authority control point obtains a DDD URL from the UPnP device.
- the event receiving rights of the control points can be classified into three categories: public rights (ie, rights) The minimum), the basic privilege (that is, the privilege is slightly higher) and the admin privilege (that is, the highest privilege) can be divided into more or two types of event receiving privilege in the actual application, which is not limited here.
- control points in this embodiment are described by taking a basic authority control point as an example.
- the process of obtaining the DDD URL from the UPnP device is similar to the process of obtaining the DDD URL in the foregoing embodiment shown in FIG. 2, and details are not described herein again.
- the basic privilege control point obtains the URL of the event subscription and the URL of the security event subscription from the UPnP device according to the DDD URL;
- the process of acquiring the URL of the event subscription and the URL of the security event subscription from the UPnP device by the basic rights control point is similar to the process of obtaining the URL of the event subscription and the URL of the security event subscription in the foregoing embodiment shown in FIG. 2, I will not repeat them here.
- the basic privilege control point establishes an SSL connection with the UPnP device.
- an SSL connection is taken as an example for description.
- other types of connections such as a TLS connection, may also be used.
- the basic privilege control point sends a subscription message to the UPnP device through the established SSL connection, and the URL of the event subscription or the URL of the security event subscription;
- the SSL connection can be used to send a subscription message to the URL of the event subscription by using HTTP, or send a subscription to the URL of the security event subscription by using HTTPS. Message.
- the UPnP device determines, according to the subscription message, an event receiving permission of the control point.
- the access permission of the control point in the access control list is a basic permission
- the UPnP device may determine, according to the access permission, that the event receiving permission of the control point is a basic permission.
- the UPnP device may determine that the event receiving permission of the control point is public authority, and if the control point uses HTTPS to send the subscription message to the URL subscribed to the security event, Then, the UPnP device can determine that the event receiving permission of the control point is a basic permission.
- the UPnP device may also directly determine the event receiving permission of the control point from the subscriber list. . 306.
- the UPnP device sends an event.
- the event after the event receiving authority of the control point is determined, the event can be sent to the control point according to the event level and the event receiving authority of the control point.
- the event receiving permission corresponding to the event level when the event receiving permission corresponding to the event level is lower than or equal to the event receiving permission of the control point, the event is sent to the control point, and the event receiving permission corresponding to the event level is higher than the event receiving permission of the control point. When an event is not sent to the control point.
- the level of an event is intermediate, and the corresponding event receiving permission is basic. If the event receiving permission of the control point is basic, the event receiving permission corresponding to the event level is equal to the event receiving permission of the control point, and then The control point sends the event. If the event receiving permission of the control point is public, the event receiving authority corresponding to the event level is higher than the event receiving permission of the control point, and the event cannot be sent to the control point.
- the event may be sent to the control point according to the event level and the event receiving permission of the control point, so that the event containing the private information may be reduced by the control point with lower authority. Or the possibility of illegal control point acquisition, thereby improving the security of information transmission.
- Another embodiment includes:
- the administrator user can input his/her own username and password on the basic rights control point to log in to the basic rights control point.
- the UPnP device verifies the administrator's username and password.
- the UPnP device updates an event receiving permission of the control point.
- the current control point's access rights can be updated to the administrator's access rights, that is, "administrator rights", and according to the updated control point access rights. Determine the event receiving permission of this control point as administrator authority.
- the UPnP device may determine that the event receiving permission of the control point is public authority, and if the control point uses HTTPS to send the subscription message to the URL subscribed to the security event, The UPnP device can then determine the event of the control point. Receive permissions are administrator privileges.
- the UPnP device confirms that the administrator user logs out from the basic authority control point
- the UPnP device updates the event receiving permission of the control point.
- the access authority of the current control point can be updated to the original access privilege of the control point, that is, "basic privilege", and according to the updated control point.
- the access rights determine the event receiving permission of the control point as the basic permission.
- the event may be sent to the control point according to the event level and the event receiving permission of the control point, so that the event containing the private information may be reduced by the control point with lower authority. Or the possibility of illegal control point acquisition, thereby improving the security of information transmission;
- control point can obtain the URL of the event subscription from the UPnP device in multiple manners, thereby improving the flexibility of the subscription process;
- the UPnP device can adjust the event receiving authority of the control point according to the user login and logout conditions, thereby improving the flexibility of the data transmission process.
- the device may determine the event receiving permission of the control point, and when the event receiving authority corresponding to the event level is lower than or equal to the event receiving permission of the control point, The event is sent to the control point.
- the control point may also carry specific requirements in the subscription message sent to the device, for example:
- the event level/control point access rights of a device are classified into three categories: "public”, “basic”, and “administrator”. Then, for example, a control point access authority is an administrator, but it only needs to subscribe to an administrator-level event, so a subscription message can be sent to the URL of the security event subscription through HTTPS, and the subscription message carries an identifier, and the identifier is used for Indicates that the subscription event level is "equal to the administrator," and the device will only send administrator-level events to the control point accordingly;
- the subscription message carries an identifier, which is used to indicate that the subscription level is "below and equal to the basic," This only sends basic and public level events to this control point.
- the event sending system in the embodiment of the present invention includes:
- Control point 501 configured to receive an event
- the device 502 is configured to: when an event is generated, determine an event level corresponding to the event, determine a control point 501 that subscribes to the event, and an event receiving permission of the control point 501, according to the event level and the control point 501
- the event receiving authority sends the event to the control point 501
- control point 501 is further configured to send a subscription message, and the subscription message is used to request to receive an event.
- the process of sending the subscription message by the specific control point 501 is the same as the process of sending the subscription message described in the foregoing method embodiment, where Let me repeat.
- the device 502 in this embodiment is further configured to add information of the control point 501 to a subscriber list, and the information of the control point 501 includes event receiving authority of the control point 501.
- device 502 can receive a subscription message from control point 501 for requesting receipt of an event.
- the device 502 After receiving the subscription message sent by the control point 501, the device 502 can determine the event receiving authority of the control point 501.
- an event may be generated due to a configuration modification of the device 502 by the control point 501 or a change in the operating state of the device.
- the event can be sent to the control point 501 based on the event level and the event receiving authority of the control point 501.
- the information of the control point 501 may be added to the subscriber list, and the information of the control point 501 includes the event receiving authority of the control point 501.
- the device 502 in this embodiment may be a UPnP device or other types of devices in an actual application, which is not limited herein.
- the device 502 determines the event receiving permission of the control point 501
- the event can be sent to the control point 501 according to the event level and the event receiving right of the control point 501, so that the event including the private information can be reduced.
- the security of control points or illegal control points to improve the security of information transmission. The following describes the device embodiment in the embodiment of the present invention. Referring to FIG. 6, the device embodiment in the embodiment of the present invention includes:
- the receiving unit 601 is configured to receive a subscription message sent by the control point, where the subscription message is used to request to receive an event;
- the determining unit 602 is configured to determine an event level corresponding to the event when the event is generated, and determine a control point that subscribes to the event and an event receiving permission of the control point;
- the determining unit 602 determines the event level corresponding to the event, and the process of determining the control point subscribed to the event and the event receiving permission of the control point, and determining the event receiving permission of the control point in the foregoing FIG. 2 to FIG. The process is similar and will not be described here.
- the sending control unit 603 is configured to send an event to the control point according to an event level and an event receiving right of the control point.
- the sending control unit 603 when the event receiving authority corresponding to the event level is lower than or equal to the event receiving permission of the control point, the sending control unit 603 sends an event to the control point, and the event receiving authority corresponding to the event level is higher than the event receiving of the control point. When permissions are granted, no events are sent to the control point.
- the receiving unit 601 in this embodiment may further include:
- the first receiving unit 6011 is configured to receive a subscription message sent by the control point to the event subscription URL through HTTP; or
- the second receiving unit 6012 is configured to receive a subscription message sent by the control point to the security event subscription URL through HTTPS.
- the storage unit 604 is configured to add information of the control point to the subscriber list, where the information of the control point includes an event receiving permission of the control point.
- the storage unit 604 After the storage unit 604 stores the information of the control point in the subscriber list, when an event is generated and needs to be sent later, it can be determined according to the subscriber list to which control points are sent, and at the same time, the determining unit 602 determines the control point.
- the event receiving permission of the control point can also be determined directly from the subscriber list.
- the sending control unit 603 can send an event to the control point according to the event level and the event receiving right of the control point, so that the event including the private information can be reduced.
- the medium can be a read only memory, a magnetic disk or a compact disk or the like.
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Description
一种事件发送方法及系统以及相关设备 本申请要求于 2009 年 8 月 19 日提交中国专利局、 申请号为
200910164896.6、 发明名称为 "一种事件发送方法及系统以及相关设备" 的中 国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种事件发送方法及系统以及相关设备。 背景技术
随着数字家庭的发展, 以及消费电子 (CE, Consumer Electronics )产品 本身的普遍数字化, 家庭中正出现越来越多的数字化的娱乐设备和家电产品。 将这些家庭网络设备以有线或无线方式连接成家庭网络,以实现内容共享或相 互控制等功能, 是业界正在构想并努力实现的数字家庭网络概念。
为了实现各种不同类型家庭设备的互通和控制,越来越多的家庭网络设备 都支持通用即插即用 (UPnP, Universal Plug and Play )„ 在 UPnP体系中, 用 户通过家庭网络中的控制点 (CP, Control Point ) 实现对家庭设备的控制。
现有技术中一种事件发送方法为: 在家庭网络设备运行过程中, 可能由于
CP对该家庭网络设备的配置修改或家庭网络设备运行状态变化而导致事件的 产生, 则家庭网络设备会将该事件发送给订阅了该事件的 CP。
但是,现有技术的方案中, 只要某个 CP订阅了事件, 则当该事件产生时, 家庭网络设备会直接将该事件发送至该 CP, 如果这些事件中包含一些隐私信 息, 则会导致隐私信息被泄露给一些低安全级别的 CP或者是非法的 CP, 从 而影响了信息传输的安全性。
发明内容
本发明实施例提供了一种事件发送方法及系统以及相关设备,能够提高信 息传输的安全性。
本发明实施例提供的事件发送方法, 包括: 当事件产生时, 确定所述事件 对应的事件级别; 确定订阅了事件的控制点以及所述控制点的事件接收权限; 根据所述事件级别和所述控制点的事件接收权限向所述控制点发送所述事件。
本发明实施例提供的事件发送系统, 包括:控制点,用于接收事件;设备, 用于当事件产生时,确定所述事件对应的事件级别,确定订阅了事件的控制点 以及所述控制点的事件接收权限,根据所述事件级别和所述控制点的事件接收 权限向所述控制点发送所述事件。
本发明实施例提供的设备, 包括: 确定单元, 用于当事件产生时, 确定所 述事件对应的事件级别,并确定订阅了事件的控制点以及所述控制点的事件接 收权限; 发送控制单元, 用于根据事件级别和所述控制点的事件接收权限向所 述控制点发送所述事件。
从以上技术方案可以看出, 本发明实施例具有以下优点:
本发明实施例中,设备确定订阅了事件的控制点的事件接收权限之后, 即 可根据事件级别和控制点的事件接收权限向所述控制点发送事件,所以能够降 低包含隐私信息的事件被权限较低的控制点或非法控制点获取的可能性,从而 提高信息传输的安全性。
附图说明
图 1为本发明实施例中事件发送方法一个实施例示意图;
图 2为本发明实施例中事件发送方法另一实施例示意图;
图 3为本发明实施例中事件发送方法另一实施例示意图;
图 4为本发明实施例中事件发送方法另一实施例示意图;
图 5为本发明实施例中事件发送系统实施例示意图;
图 6为本发明实施例中设备实施例示意图。
具体实施方式
本发明实施例提供了一种事件发送方法及系统以及相关设备,用于提高信 息传输的安全性。
请参阅图 1 , 本发明实施例中事件发送方法一个实施例包括:
101、 确定事件对应的事件级别;
本实施例中, 当设备产生事件时, 会确定该事件对应的事件级别。
本实施例中, 当设备运行过程中, 可能由于控制点对该设备的配置修改或 设备运行状态变化而导致事件的产生。
每个服务可以对应设备的一个功能, 例如设备具备软件管理的功能, 包括 软件安装, 卸载, 更新等操作, 则该设备中的一项服务可以为 "软件管理",
当该设备对软件执行了安装, 卸载, 更新等操作时, 则会产生相应的事件, 该 事件中可以记录有事件标识, 操作时间, 操作对象, 操作结果, 对象信息等一 些数据。
设备产生了事件之后, 即可确定该事件的事件级别。
102、 确定订阅了事件的控制点以及该控制点的事件接收权限;
本实施例中,设备可以确定订阅了事件的控制点以及该控制点的事件接收 权限, 具体的确定方式将在后续实施例中详细描述。
需要说明的是,本实施例中,步骤 101与步骤 102之间并不存在先后关系, 可以先执行步骤 101 , 也可以先执行步骤 102, 具体此处不作限定。
103、 根据事件级别和控制点的事件接收权限向控制点发送事件。
本实施例中,设备确定控制点的事件接收权限之后, 即可根据事件级别和 控制点的事件接收权限向所述控制点发送事件,所以能够降低包含隐私信息的 事件被权限较低的控制点或非法控制点获取的可能性,从而提高信息传输的安 全性。
上面描述了设备在产生事件之后的处理过程,下面结合控制点的事件订阅 过程一同对本发明实施例中的事件发送方法进行描述, 请参阅图 2, 本发明实 施例中事件发送方法另一实施例包括:
201、控制点获取用于事件订阅的统一资源定位符( URL, Uniform Resource Locator );
本实施例中, 控制点获取 URL的方式可以有以下两种:
( 1 )、 UPnP设备上线时的获取方式:
本方式中, 当 UPnP设备上线时发送简单服务发现协议(SSDP, Simple Service Discovery Protocol )宣告报文, 在该 SSDP宣告报文中携带有设备描述 文件 ( DDD, Device Description Document ) URL。
控制点接收到 UPnP设备发送的 SSDP宣告报文之后, 读取出该报文中的
DDD URL, 并向该 DDD URL发送超文本传输协议 ( HTTP, Hyper Texture Transport Protocol ) GET请求, UPnP设备接收到该 HTTP GET请求之后, 向 控制点反馈设备描述文件, 该设备描述文件中携带有事件订阅的 URL以及安 全事件订阅的 URL。
( 2 )、 控制点上线时的获取方式:
本方式中, 当控制点上线时发送 SSDP搜索报文, 在该 SSDP搜索报文中 携带搜索条件, 各 UPnP设备接收到该 SSDP搜索报文之后, 根据其中的搜索 条件校验自身是否匹配, 若匹配, 则向该控制点反馈响应, 在该响应中携带有 DDD URL。
控制点向该 DDD URL发送 HTTP GET请求, UPnP设备接收到该 HTTP
GET请求之后, 向控制点反馈设备描述文件, 该设备描述文件中携带有事件 订阅的 URL以及安全事件订阅的 URL。
需要说明的是,本实施例中,是以 UPnP设备作为设备的例子进行说明的, 在实际应用中, 除了 UPnP设备之外, 还可以釆用其他的设备, 例如其他类型 的家庭网络设备, 或者消费电子产品设备, 具体此处不作限定。
202、 控制点与 UPnP设备建立数据连接;
控制点与 UPnP设备之间建立数据连接, 具体可以为加密套接字协议层 ( SSL, Security Socket Layer )连接。
具体的建立数据连接的过程为本领域技术人员的公知常识, 此处不作限 定。
需要说明的是, 本实施例中, 该数据连接除了可以是 SSL连接之外, 还 可以为传输层安全(TLS, Transport Layer Security )连接, 或者是其他的数据 连接, 具体类型此处不作限定。
203、 控制点通过数据连接向 URL发送订阅消息;
本实施例中, 控制点在与 UPnP设备建立了数据连接之后, 即可通过该数 据连接向 URL发送订阅消息, 具体可以釆用如下一些方式:
控制点通过 HTTP向事件订阅的 URL发送的订阅消息;
或者,
控制点通过 HTTPS向安全事件订阅的 URL发送的订阅消息。
204、 确定控制点的事件接收权限;
本实施例中, UPnP设备接收到控制点发送的订阅消息之后, 即可确定该 控制点的事件接收权限,具体可以根据该控制点的访问权限确定该控制点的事 件接收权限。
本实施例中, 控制点的访问权限可以为该控制点在访问控制列表(ACL, Access Control List )中的访问权限, 或者是该控制点通过用户登录获得的访问
权限。
需要说明的是, 本实施例中,控制点在访问控制列表中的访问权限是指该 控制点在该 UPnP设备上拥有的访问权限, 即该控制点可以访问该设备上的哪 些服务、 控制命令和内容。
该访问控制列表一般保存在 UPnP设备中,用以维护一个或多个控制点对 该设备的访问权限。 例如, 控制点在 UPnP设备保存的访问控制列表中的访问 权限为基本(Basic )权限(Role ), 则该控制点对该 UPnP设备具有基本访问 权限。
本实施例中控制点通过用户登录获得的访问权限是指当该控制点允许用 户登录时, 若高级用户登录了该控制点, 则可使得该控制点的访问权限提高至 该高级用户的访问权限,例如某管理员用户登录了一个在访问控制列表中具有 基本权限的控制点, 则该控制点的访问权限会提升为管理员 (Admin )权限。
本实施例中,在确定某控制点的事件接收权限时, 除了需要考虑该控制点 的访问权限之外, 还可以进一步考虑该控制点发送订阅请求时的 URL, 从而 最终确定该控制点的事件接收权限。
实际中,设备也可以首先判断: 如果控制点通过 HTTP发送订阅消息至事 件订阅的 URL, 则无论该控制点是否具有更高的访问权限, 都确定该控制点 的事件接收权限为公众; 只有该控制点通过 HTTPS发送订阅消息至安全事件 订阅的 URL时, 才进一步根据控制点的访问权限确定其事件接收权限。
例如, 某访问权限为管理员的控制点通过 HTTP向事件订阅的 URL发送 订阅消息, 由于该事件订阅的 URL只能负责发送事件级别为低级的事件, 所 以 UPnP设备确定该控制点的事件接收权限为公众( Public )。
需要说明的是,上述仅以几种方式对本实施例中确定控制点的事件接收权 限的过程进行了描述, 可以理解的是, 在实际应用中, 还可以有更多种确定控 制点的事件接收权限的方式, 具体此处不作限定。
本实施例中, 当 UPnP设备确定了控制点的事件接收权限之后, 还可以将 该控制点的信息存入订阅者列表,该控制点的信息至少包括该控制点的事件接 收权限。
当控制点的信息存入订阅者列表之后, 以后当有事件产生, 需要发送时, 则可以根据该订阅者列表确定向哪些控制点发送, 同时,在设备确定控制点的
事件接收权限时, 也可以直接从该订阅者列表中确定控制点的事件接收权限。
205、 根据事件级别和控制点的事件接收权限向控制点发送事件。
本实施例中当确定了控制点的事件接收权限之后,即可根据事件级别和控 制点的事件接收权限向控制点发送事件。
具体的, 本实施例中, 当事件级别对应的事件接收权限低于或等于控制点 的事件接收权限时, 向控制点发送事件, 当事件级别对应的事件接收权限高于 控制点的事件接收权限时, 不向控制点发送事件。
例如, 某事件的级别为中级, 其对应的事件接收权限为基本权限, 若控制 点的事件接收权限为基本权限,则该事件级别对应的事件接收权限等于控制点 的事件接收权限, 则可以向该控制点发送该事件, 若控制点的事件接收权限为 公众, 则该事件级别对应的事件接收权限高于控制点的事件接收权限, 则不能 向该控制点发送该事件。
需要说明的是, 本实施例中, 若控制点是可登录设备, 则用户可以登录控 制点从而改变该控制点的访问权限, 并进一步改变该控制点的事件接收权限, 例如管理员用户登录了一个在访问控制列表中具有基本权限的控制点,则该控 制点的访问权限会提升为管理员权限,从而该控制点的事件接收权限也提升为 管理员权限, 当该管理员用户登出该控制点时, 该控制点的访问权限又会还原 到基本权限, 该控制点的事件接收权限也会还原到基本权限。
本实施例中,设备确定控制点的事件接收权限之后, 即可根据事件级别和 控制点的事件接收权限向所述控制点发送事件,所以能够降低包含隐私信息的 事件被权限较低的控制点或非法控制点获取可能性,从而提高信息传输的安全 性;
其次, 本实施例中, 控制点可以通过多种方式从 UPnP设备获取到事件订 阅的 URL, 从而能够提高订阅过程的灵活性;
再次, 本实施例中, UPnP设备可以根据用户登录和登出的情况对控制点 的事件接收权限进行调整, 从而可以提高数据传输过程的灵活性。
下面以一个具体的实例对上述的事件发送方法进行详细描述, 请参阅图 3 , 本发明实施例中的订阅方法另一实施例包括:
301、 基本权限控制点从 UPnP设备获取 DDD URL;
本实施例中, 可以将控制点的事件接收权限分为三类: 公众权限(即权限
最低), 基本权限(即权限稍高) 以及管理员权限(即权限最高), 在实际应用 中同样可以分为更多的或两类事件接收权限, 此处不作限定。
本实施例中的控制点以基本权限控制点为例进行说明。
本实施例中 , 基本权限控制点从 UPnP设备获取 DDD URL的过程与前述 图 2所示的实施例中获取 DDD URL的过程类似, 此处不再赘述。
302、 基本权限控制点根据 DDD URL从 UPnP设备获取事件订阅的 URL 以及安全事件订阅的 URL;
本实施例中, 基本权限控制点从 UPnP设备获取事件订阅的 URL以及安 全事件订阅的 URL的过程与前述图 2所示的实施例中获取事件订阅的 URL以 及安全事件订阅的 URL的过程类似, 此处不再赘述。
303、 基本权限控制点与 UPnP设备建立 SSL连接;
本实施例中,基本权限控制点与 UPnP设备建立 SSL连接的过程为本领域 技术人员的公知常识, 具体此处不作限定。
需要说明的是, 本实施例中是以 SSL连接为例进行说明, 在实际应用中 同样还可以为其他类型的连接, 例如 TLS连接等。
304、 基本权限控制点通过建立的 SSL连接, 及事件订阅的 URL或安全 事件订阅的 URL向 UPnP设备发送订阅消息;
本实施例中,基本权限控制点在与 UPnP设备建立了 SSL连接之后, 即可 通过该 SSL连接,釆用 HTTP向事件订阅的 URL发送订阅消息,或釆用 HTTPS 向安全事件订阅的 URL发送订阅消息。
305、 UPnP设备根据订阅消息确定控制点的事件接收权限;
本实施例中, 控制点在访问控制列表中的访问权限为基本权限, 则 UPnP 设备可以根据该访问权限确定该控制点的事件接收权限为基本权限。
更进一步,若控制点釆用 HTTP向事件订阅的 URL发送订阅消息,则 UPnP 设备可以确定该控制点的事件接收权限为公众权限, 若控制点釆用 HTTPS向 安全事件订阅的 URL发送订阅消息, 则 UPnP设备可以确定该控制点的事件 接收权限为基本权限。
需要说明的是, 如果在之前的过程中, UPnP设备已经将该控制点的信息 加入订阅者列表, 则此步骤中, UPnP设备也可以直接从该订阅者列表中确定 该控制点的事件接收权限。
306、 UPnP设备发送事件。
本实施例中当确定了控制点的事件接收权限之后,即可根据事件级别和控 制点的事件接收权限向控制点发送事件。
具体的, 本实施例中, 当事件级别对应的事件接收权限低于或等于控制点 的事件接收权限时, 向控制点发送事件, 当事件级别对应的事件接收权限高于 控制点的事件接收权限时, 不向控制点发送事件。
例如, 某事件的级别为中级, 其对应的事件接收权限为基本权限, 若控制 点的事件接收权限为基本权限,则该事件级别对应的事件接收权限等于控制点 的事件接收权限, 则可以向该控制点发送该事件, 若控制点的事件接收权限为 公众, 则该事件级别对应的事件接收权限高于控制点的事件接收权限, 则不能 向该控制点发送该事件。
本实施例中,设备确定控制点的事件接收权限之后, 即可根据事件级别和 控制点的事件接收权限向所述控制点发送事件,所以能够降低包含隐私信息的 事件被权限较低的控制点或非法控制点获取的可能性,从而提高信息传输的安 全性。
上面介绍了 UPnP设备确定控制点的事件接收权限的一种方式, 下面描述 通过用户登录和登出的过程确定控制点的事件接收权限的方式, 请参阅图 4, 本发明实施例中事件发送方法另一实施例包括:
401 ~ 403、 与前述图 3所示的实施例中的 301 ~ 303相同, 此处不再赘述; 404、 管理员用户登录基本权限控制点;
本实施例中, 若基本权限控制点为可登录设备, 则管理员用户可以在基本 权项控制点上输入自己的用户名和密码以登录该基本权限控制点。
405、 UPnP设备对管理员的用户名和密码进行验证;
406、 UPnP设备对控制点的事件接收权限进行更新;
当 UPnP设备对管理员的用户名和密码验证通过之后, 即可将当前的控制 点的访问权限更新为该管理员的访问权限, 即 "管理员权限", 同时根据更新 后的控制点的访问权限确定该控制点的事件接收权限为管理员权限。
更进一步,若控制点釆用 HTTP向事件订阅的 URL发送订阅消息,则 UPnP 设备可以确定该控制点的事件接收权限为公众权限, 若控制点釆用 HTTPS向 安全事件订阅的 URL发送订阅消息, 则 UPnP设备可以确定该控制点的事件
接收权限为管理员权限。
407 - 409, 与前述图 3所示实施例的步骤 304 ~ 306相同, 此处不再赘述; 需要说明的是, 此时控制点的事件接收权限为 "管理员权限", 则 UPnP 设备可以将该产生的所有的事件均发送至该控制点。
410、 管理员用户从基本权限控制点登出;
411、 UPnP设备确认管理员用户从基本权限控制点登出;
412、 UPnP设备对控制点的事件接收权限进行更新。
当 UPnP设备确定管理员用户已经从基本权限控制点登出之后, 即可将当 前的控制点的访问权限更新为该控制点原先的访问权限, 即 "基本权限", 同 时根据更新后的控制点的访问权限确定该控制点的事件接收权限为基本权限。
本实施例中,设备确定控制点的事件接收权限之后, 即可根据事件级别和 控制点的事件接收权限向所述控制点发送事件,所以能够降低包含隐私信息的 事件被权限较低的控制点或非法控制点获取的可能性,从而提高信息传输的安 全性;
其次, 本实施例中, 控制点可以通过多种方式从 UPnP设备获取到事件订 阅的 URL, 从而能够提高订阅过程的灵活性;
再次, 本实施例中, UPnP设备可以根据用户登录和登出的情况对控制点 的事件接收权限进行调整, 从而可以提高数据传输过程的灵活性。
需要说明的是, 在上述实施例中, 控制点向设备发送订阅消息之后, 设备 可确定控制点的事件接收权限,且当事件级别对应的事件接收权限低于或等于 控制点的事件接收权限时, 向控制点发送事件, 而在实际应用中, 为了进一步 提高订阅的灵活性 , 控制点在发给设备的订阅消息中还可以携带有具体的需 求, 例如:
某设备的事件级别 /控制点访问权限都分为 "公众"、 "基本"、 "管理员" 三类。 则, 例如某控制点访问权限为管理员, 但其只需要订阅管理员级别的事 件,所以可以通过 HTTPS向安全事件订阅的 URL发送订阅消息,在该订阅消 息中携带一个标识, 该标识用于指示订阅事件级别为 "等于管理员,,, 则设备 会据此只向该控制点发送管理员级别的事件;
再如, 上述控制点希望订阅 "基本" 及以下级别的事件, 则在订阅消息中 携带一个标识, 该标识用于指示订阅级别为 "低于及等于基本,,, 则设备会据
此只向该控制点发送基本和公众级别的事件。
下面对本发明实施例中的事件发送系统进行描述, 请参阅图 5 , 本发明实 施例中的事件发送系统包括:
控制点 501 , 用于接收事件;
设备 502, 用于当事件产生时, 确定所述事件对应的事件级别, 确定订阅 了事件的控制点 501以及所述控制点 501的事件接收权限,根据所述事件级别 和所述控制点 501的事件接收权限向所述控制点 501发送所述事件
本实施例中,控制点 501还用于发送订阅消息,订阅消息用于请求接收事 件,具体控制点 501发送订阅消息的过程与前述方法实施例中描述的发送订阅 消息的过程相同, 此处不再赘述。
本实施例中的设备 502还用于将所述控制点 501的信息加入订阅者列表, 所述控制点 501的信息包括所述控制点 501的事件接收权限。
为便于理解, 下面以一具体应用场景进行说明:
本实施例中,设备 502可以从控制点 501接收到订阅消息, 该订阅消息用 于请求接收事件。
设备 502在接收到控制点 501发送的订阅消息之后, 可以确定该控制点 501的事件接收权限。
本实施例中, 当设备 502运行过程中, 可能由于控制点 501对该设备 502 的配置修改或设备运行状态变化而导致事件的产生。
设备 502产生了事件之后,即可根据事件级别以及控制点 501的事件接收 权限向控制点 501发送事件。
需要说明的是, 本实施例中, 当设备 502确定了控制点 501的事件接收权 限之后, 可以将控制点 501的信息加入订阅者列表,控制点 501的信息包括控 制点 501的事件接收权限。
本实施例中的设备 502在实际应用中可以为 UPnP设备,或者为其他类型 的设备, 此处不作限定。
本实施例中,设备 502确定控制点 501的事件接收权限之后, 即可根据事 件级别和控制点 501的事件接收权限向控制点 501发送事件,所以能够降低包 含隐私信息的事件被权限较低的控制点或非法控制点获取的肯能性,从而提高 信息传输的安全性。
下面介绍本发明实施例中的设备实施例, 请参阅图 6 , 本发明实施例中的 设备实施例包括:
接收单元 601 , 用于接收控制点发送的订阅消息, 所述订阅消息用于请求 接收事件;
确定单元 602 , 用于当事件产生时, 确定所述事件对应的事件级别, 并确 定订阅了事件的控制点以及所述控制点的事件接收权限;
本实施例中,确定单元 602确定事件对应的事件级别, 以及确定订阅了事 件的控制点以及所述控制点的事件接收权限的过程与前述图 2至图 4中确定控 制点的事件接收权限的过程类似, 此处不再赘述。
发送控制单元 603 , 用于根据事件级别和所述控制点的事件接收权限向所 述控制点发送事件。
本实施例中,发送控制单元 603当事件级别对应的事件接收权限低于或等 于控制点的事件接收权限时, 向控制点发送事件, 当事件级别对应的事件接收 权限高于控制点的事件接收权限时, 不向控制点发送事件。
本实施例中的接收单元 601还可以进一步包括:
第一接收单元 6011 , 用于接收控制点通过 HTTP向事件订阅 URL发送的 订阅消息; 或者,
第二接收单元 6012 , 用于接收控制点通过 HTTPS向安全事件订阅 URL 发送的订阅消息。
本实施例中的设备实施例还可以进一步包括:
存储单元 604 , 用于将所述控制点的信息加入订阅者列表, 所述控制点的 信息包括所述控制点的事件接收权限。
当存储单元 604 将控制点的信息存入订阅者列表之后, 以后当有事件产 生, 需要发送时, 则可以根据该订阅者列表确定向哪些控制点发送, 同时, 在 确定单元 602确定控制点的事件接收权限时,也可以直接从该订阅者列表中确 定控制点的事件接收权限。
本实施例中,确定单元 602确定控制点的事件接收权限之后,发送控制单 元 603即可根据事件级别和控制点的事件接收权限向所述控制点发送事件,所 以能够降低包含隐私信息的事件被权限较低的控制点或非法控制点获取的可 能性, 从而提高信息传输的安全性。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可 读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上对本发明所提供的一种事件发送方法及系统以及相关设备进行了详 细介绍, 对于本领域的一般技术人员, 依据本发明实施例的思想, 在具体实施 方式及应用范围上均会有改变之处, 综上所述, 本说明书内容不应理解为对本 发明的限制。
Claims
1、 一种事件发送方法, 其特征在于, 包括:
当事件产生时, 确定所述事件对应的事件级别;
确定订阅了事件的控制点以及所述控制点的事件接收权限;
根据所述事件级别和所述控制点的事件接收权限向所述控制点发送所述 事件。
2、 根据权利要求 1所述的方法, 其特征在于, 所述确定所述事件对应的 事件级别之前包括:
接收控制点发送的订阅消息, 所述订阅消息用于请求接收事件。
3、 根据权利要求 2所述的方法, 其特征在于, 所述接收控制点发送的订 阅消息具体为:
接收控制点通过超文本传输协议 HTTP向事件订阅统一资源定位符 URL 发送的订阅消息;
或者,
接收控制点通过安全超文本传输协议 HTTPS向安全事件订阅 URL发送的 订阅消息。
4、 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述确定控 制点的事件接收权限具体为:
根据所述控制点的访问权限确定所述控制点的事件接收权限。
5、 根据权利要求 4所述的方法, 其特征在于, 所述控制点的访问权限为 所述控制点在访问控制列表中的访问权限,或者为所述控制点通过用户登陆获 得的访问权限。
6、 根据权利要求 1-5任一所述的方法, 其特征在于, 所述确定控制点的 事件接收权限之后还包括:
将所述控制点的信息加入订阅者列表,所述控制点的信息包括所述控制点 的事件接收权限;
所述确定订阅了事件的控制点以及所述控制点的事件接收权限具体为: 查询所述订阅者列表;
根据所述订阅者列表确定订阅了事件的控制点以及所述控制点的事件接
收权限。
7、 根据权利要求 1-5任一所述的方法, 其特征在于, 所述根据事件级别 和所述控制点的事件接收权限向所述控制点发送所述事件具体为:
当事件级别对应的事件接收权限低于或等于所述控制点的事件接收权限 时, 向所述控制点发送所述事件。
8、 一种事件发送系统, 其特征在于, 包括:
控制点, 用于接收事件;
设备, 用于当事件产生时, 确定所述事件对应的事件级别, 确定订阅了事 件的控制点以及所述控制点的事件接收权限,根据所述事件级别和所述控制点 的事件接收权限向所述控制点发送所述事件。
9、 根据权利要求 8所述的事件发送系统, 其特征在于, 所述控制点还用 于发送订阅消息, 所述订阅消息用于请求接收事件。
10、 根据权利要求 8或 9所述的事件发送系统, 其特征在于,
所述设备还用于将所述控制点的信息加入订阅者列表,所述控制点的信息 包括所述控制点的事件接收权限。
11、 一种设备, 其特征在于, 包括:
确定单元, 用于当事件产生时, 确定所述事件对应的事件级别, 并确定订 阅了事件的控制点以及所述控制点的事件接收权限;
发送控制单元,用于根据事件级别和所述控制点的事件接收权限向所述控 制点发送所述事件。
12、 根据权利要求 11所述的设备, 其特征在于, 所述设备还包括: 接收单元, 用于接收控制点发送的订阅消息, 所述订阅消息用于请求接收 事件。
13、 根据权利要求 12所述的设备, 其特征在于, 所述接收单元包括: 第一接收单元, 用于接收控制点通过 HTTP向事件订阅 URL发送的订阅 消息;
或者,
第二接收单元,用于接收控制点通过 HTTPS向安全事件订阅 URL发送的 订阅消息。
14、 根据权利要求 11至 13中任一项所述的设备, 其特征在于, 所述设备
还包括:
存储单元, 用于将所述控制点的信息加入订阅者列表, 所述控制点的信息 包括所述控制点的事件接收权限;
所述确定单元具体用于当事件产生时, 确定所述事件对应的事件级别, 查 询所述订阅者列表;根据所述订阅者列表确定订阅了事件的控制点以及所述控 制点的事件接收权限。
15、 根据权利要求 11-14任一项所述的设备, 其特征在于, 所述发送单元 具体用于确定所述事件级别对应的事件接收权限低于或等于所述控制点的事 件接收权限时, 向所述控制点发送所述事件。
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US20070067409A1 (en) * | 2005-08-26 | 2007-03-22 | At&T Corp. | System and method for event driven publish-subscribe communications |
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US20040153552A1 (en) * | 2003-01-29 | 2004-08-05 | Nokia Corporation | Access right control using access control alerts |
WO2005002176A1 (en) * | 2003-06-23 | 2005-01-06 | Nokia Copporation | System and method for restricting event subscriptions through proxy-based filtering |
US20070067409A1 (en) * | 2005-08-26 | 2007-03-22 | At&T Corp. | System and method for event driven publish-subscribe communications |
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